Fujitsu F2mc-16l series User manual

F²MC-16L Series

MB90675 Series Evaluation Board

USER MANUAL

Printed: 12. August 1996

FUJITSU MB90675-Evaluation Board - User Manual

The information in this document has been carefully checked and is believed to be entirely

reliable. However, Fujitsu Mikroelektronik GmbH assume no responsibility for inaccuracies.

The information contained in this document does not convey any license under the copyright,

patent rights or trademarks claimed and owned by Fujitsu.

Fujitsu Mikroelektronik GmbH reserve the right to change products or specifications without

notice. No part of this publication may be copied or reproduced in any form or by any means,

or transferred to any third party without the prior written consent of Fujitsu.

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FUJITSU MB90675-Evaluation Board - User Manual

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Disclaimer

Use the Evaluation Board at your own risk. Read the document, follow instructions, and make

backups. Fujitsu can not guarantee that the board and code will work with every possible

combination of hardware and software. While we have done our best to produce well-written,

bug-free code, oversights and omissions can occur.

Fujitsu is not responsible for any damages that might occur while using the Evaluation Board

or belonging software. We can not guarantee it will be "safe" or "harmless" in all possible

applications, and any loss of time, data, hardware or software you incur as a result of using the

Evaluation Board is your responsibility.

LIMITED WARRANTY AND REMEDIES

THE DEVICE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND , EITHER

EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO WARRANTIES OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT

WILL FUJITSU BE LIABLE TO YOU FOR ANY DAMAGES, INCLUDING

INCIDENTAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF THE USE OF

THE DEVICE OR PROGRAMS, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH

DAMAGES.

YOU ACKNOWLEDGE THAT YOU HAVE READ THIS LICENSE, UNDERSTAND IT

AN AGREE TO BE BOUND BY ITS TERMS AS THE COMPLETE AND EXCLUSIVE

STATEMENT OF THE AGREEMENT BETWEEN US, SUPERSEDING ANY PROPOSAL

OR PRIOR AGREEMENT, ORAL OR WRITTEN, AND ANY OTHER

COMMUNICATIONS BETWEEN US RELATING TO THE SUBJECT MATTER OF THIS

LICENSE.

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Acknowledgements

We mention other people's products in this document, and would like to give credit where

credit is due.

MS-DOS is a trademark of Microsoft Corporation

I²C is a patent owned by Philips

FUJITSU Mikroelektronik GmbH 1996 - 3 -

FUJITSU MB90675-Evaluation Board - User Manual

1. Introduction ......................................................................................................... 6

2. EVAKIT Hardware ............................................................................................. 7

2.1. Installation....................................................................................................... 7

2.2. Technical Characteristics ................................................................................. 9

2.3. Evaluation Board Resources............................................................................ 9

2.4. Evaluation Board Controls ............................................................................ 11

3. Monitor Operation............................................................................................. 16

3.1. General Operation ......................................................................................... 16

3.1.1. Command Input.................................................................................... 16

3.1.2. Number Formats .................................................................................. 17

3.2. Monitor Commands....................................................................................... 18

3.3. Environment Commands................................................................................ 19

3.3.1. HELP, H, ? [Command] ....................................................................... 19

3.3.2. HEXADECIMAL, DECIMAL ............................................................. 19

3.3.3. VERIFY [ON | OFF]........................................................................... 19

3.3.4. UPDATE [CHANGE | ALWAYS]...................................................... 19

3.3.5. HEXFORMAT [INTEL | MOTOROLA] ............................................. 20

3.3.6. BAUD [Option] .................................................................................. 20

3.3.7. PORT [INTERN | EXTERN].............................................................. 21

3.3.8. UPORT [INTERN | EXTERN]........................................................... 21

3.3.9. UBREAK [ON | OFF]......................................................................... 21

3.3.10. IOREAD [ON | OFF] ........................................................................... 22

3.3.11. EMULATION [ON | OFF]................................................................... 22

3.3.12. CLS ..................................................................................................... 22

3.3.13. COLORSET [Option] .......................................................................... 22

3.3.14. STATUS.............................................................................................. 23

3.4. Program Execution Commands...................................................................... 24

3.4.1. TRACE [nInstr] ................................................................................... 24

3.4.2. STEP [OVER] [nInstr]........................................................................ 26

3.4.3. GOTO [StartAddr | ,] [StopAddr] ........................................................ 26

3.4.4. EXIT.................................................................................................... 26

3.4.5. [M]RESET [POWERON]................................................................... 27

3.4.6. URESET [0 | 1].................................................................................... 28

3.5. Memory Commands ...................................................................................... 28

3.5.1. DUMP [StartAddr [EndAddr]]............................................................ 28

3.5.2. DWORD [StartAddr [EndAddr]] ........................................................ 28

3.5.3. DLONG [StartAddr [EndAddr]] ......................................................... 28

3.5.4. DBITS [StartAddr [EndAddr]]............................................................ 29

3.5.5. DSTACK [nWord] [L] ........................................................................ 29

3.5.6. DBR [FirstBank],[LastBank]............................................................... 29

3.5.7. EDIT [ByteAddr [Data]]..................................................................... 29

3.5.8. EWORD [WordAddr [Data]] .............................................................. 30

3.5.9. ELONG [LongAddr [Data]]................................................................ 30

3.5.10. EBITS [ByteAddr[:BitAddr] [Data]].................................................... 30

3.5.11. REGISTER [RegName [Value]]........................................................... 30

3.5.12. INITUSER........................................................................................... 31

3.5.13. SHOW Option [Value1 [Value2]] ....................................................... 31

3.5.14. SET Option [Value1 [Value2 [Value3 ]]] ............................................ 32

3.5.15. FILL StartAddr EndAddr Data.......................................................... 32

3.5.16. SEARCH [StartAddr] [[D1 [[D2] ...[D8]]] | "AnyText"]..................... 32

3.5.17. MOVE StartAddr EndAddr TargAddr............................................... 33

3.5.18. COMPARE StartAddr EndAddr TargAddr ....................................... 33

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FUJITSU MB90675-Evaluation Board - User Manual

3.5.19. CHECK StartAddr EndAddr Count................................................... 33

3.5.20. CONVERT Value ............................................................................... 33

3.5.21. SAVE StartAddr EndAddr [ProgStartAddr]....................................... 34

3.6. Debug Commands ......................................................................................... 35

3.6.1. BREAK [BNumber BAddr [OccCount] ['S'] ['W' wAddr wCnt]].......... 35

3.6.2. BCLEAR [BNumber].......................................................................... 36

3.6.3. BDISABLE [BNumber] ...................................................................... 36

3.6.4. BENABLE [BNumber] ....................................................................... 36

3.6.5. SYMBOLS .......................................................................................... 36

3.6.6. SACTIVATE ....................................................................................... 36

3.6.7. SCLEAR.............................................................................................. 37

3.6.8. DISASSEMBLE [Start [nInstr]]........................................................... 37

3.6.9. LDISASSEMBLE [Start [nInstr]] ........................................................ 37

3.7. Program Download ....................................................................................... 38

4. Monitor BIOS Interface..................................................................................... 39

4.1. I/O Function Calls (ASM/C).......................................................................... 40

4.1.1. I/O Function Calls Parameter Passing ................................................... 40

4.1.2. I/O Function Calls Detailed Description................................................ 41

4.1.2.1. [00] Poll Character Received....................................................... 41

4.1.2.2. [01] Send Character on RS232.................................................... 41

4.1.2.3. [02] Receive Character on RS232 ............................................... 42

4.1.2.4. [03] Print a String ....................................................................... 42

4.1.2.5. [04] Input a String....................................................................... 42

4.1.2.6. [05] Print HexByte...................................................................... 42

4.1.2.7. [06] Print HexWord .................................................................... 42

4.1.2.8. [07] Print HexAddress................................................................. 42

4.1.2.9. [08] Print HexLongWord ............................................................ 42

4.1.2.10. [09] Wait for n Milliseconds ........................................................ 43

4.1.2.11. [0A] Enable/Disable Breakpoints................................................. 43

4.2. Other BIOS Function Calls (ASM) ................................................................ 43

4.2.1. Print Register Values............................................................................ 43

4.2.2. Monitor Control ................................................................................... 43

5. How to get started, Example Sessions ............................................................... 45

5.1. First Approach .............................................................................................. 46

5.2. Lowest Level Example .................................................................................. 48

5.3. Examples using ProMan: ............................................................................... 50

6. Evaluation Board Hardware ............................................................................. 51

6.1. Pin Assignment of the MB90675576 Microcontroller .................................... 51

6.2. Pin Assignment of the Board ......................................................................... 52

7. Appendix ............................................................................................................ 54

7.1. Appendix A: PCB Layout and Schematic....................................................... 54

7.2. Appendix B: Example Program Listings......................................................... 56

7.2.1. Example 1 ............................................................................................ 56

7.2.2. Example 2 ............................................................................................ 57

7.3. Appendix C: Program Download Protocol..................................................... 60

7.3.1. HexLine Command............................................................................... 60

7.3.2. HexFile Download (HEXDWL) .......................................................... 60

7.4. Appendix D: Monitor Software Notes, Restrictions and Recommendation..... 61

8. Index ................................................................................................................... 63

FUJITSU Mikroelektronik GmbH 1996 - 5 -

FUJITSU MB90675-Evaluation Board - User Manual

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1. Introduction

The MB90675 Evaluation Board and the associated software makes it easy to evaluate and

demonstrate almost all features of Fujitsu's F²MC-16L microcontroller series.

Along with the Fujitsu F²MC-16L software tools, it can also be used as a low cost

development system for user software design.

Monitor software and some on-board peripherals (used to realise a RS232 interface to a PC

terminal program) support program downloads, sophisticated debug functions such as

breakpoint settings, memory dumps, symbol handling and single step execution.

The monitor and the user's test program have to share a special memory area to enable both

the monitor and the user's test program to be started by a Reset. Therefore, a part of memory

area provided for the test program is mapped to the shared area. Thus, the user can develop

and test program code within the same address range as the final user program which would

reside in a PROM or mask ROM.

The user memory mapping can be activated by a separate reset button, allowing restart of the

user program, beginning from a real external hardware reset.

This user manual is divided into 6 chapters.

Chapter 2, gives hints on the installation and basic information on the board hardware.

Chapter 3 contains a detailed description on all monitor commands. To get started quickly, this

chapter may be skipped and serve just as a reference.

Chapter 4 specifies a monitor software interface (monitor BIOS) that can be accessed by user

programs for terminal input/output functions, may be skipped by novice users.

Chapter 5 contains various examples and shows how to get started.

Chapter 6 contains further details regarding the board hardware, connector assignments and a

functional description to enable external hardware extension.

Finally, the Appendix contains a board schematic, example program listings and notes on the

monitor software implementation.

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FUJITSU MB90675-Evaluation Board - User Manual

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2. EVAKIT Hardware

2.1. Installation

The installation of the evaluation board is straightforward.

A power supply, capable of supporting a fairly stable 7-8V DC and about 450 mA, is required.

Note, that the power connector must be '+' at the shield and '−' in the centre.

As a first step, make sure that the small switches located nearby the LEDs are in marked

position ON. Connect the power supply and check that the red Power LED (see fig. 1) remains

on and that the green RUNning-User LED and the red LED Displays light up briefly after

Monitor Reset has been pressed and released.

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+

MB90675

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User RAM

Monitor

EPROM

Monitor

EPROM

Power

Supply

RS232 Interfaces

Reset

Monitor User

LED Displays

User

LED (red)

Power

LED (red)

RUN

LED (green)

SW3

Mode Switches

JP14

Terminal Reset

JP37

Ext.Break

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external

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JP41

JP39

JP24..21

JP40 JP38

JP42

Evaluation Board View

JP18

5/3V Select

Fig. 1: Evaluation board view

While pressing the User Reset button, the green RUNning-User LED should be on. After

releasing the User Reset button the LED Displays should light up again.

If these installation checks were successful, the power supply should then be unplugged and

the serial connection to a PC via the 9-pin RS232 cable established at the external port

(labelled at solder side of the board) before re-connection of the power supply.

Now, the LEDs should behave in the same manner. – If not, it is most likely that the DTR

signal of the serial connection, which is used as an external Monitor Reset control line is

activated for some reason.

FUJITSU Mikroelektronik GmbH 1996 - 7 -

FUJITSU MB90675-Evaluation Board - User Manual

If a terminal program provided by Fujitsu (the ProMan Vers. 3.5 terminal window or the

stand alone mini terminal program "mt.com") is used, the problem should disappear as soon as

the software is started.

(If "mt.com" is used, ensure that the COM1 port is initialised by the "mode com1: 9600,n,8,2"

command first. )

If a different terminal program is used which does not support this option (e.g. the

TERMINAL program of Windows 3.1), this effect can be disabled by removing the "Terminal

Reset" jumper JP 14 (see fig. 1, p 7).For jumper information and setting see page 14.

On the terminal, the following message from the evaluation board monitor should appear:

==============================================

== _____ _ ==

== | | | / \ Evaluation ==

== |----- \ / |_____| Board ==

== |_____ \_/ | | Monitor V16.5 ==

== ==

== MB90675-Board Version 1.4 ==

== MB90675-controller found ==

== (c) Fujitsu Microelectronics, 1996 ==

==============================================

(C) <ModeByte,ResetVector : NONE>

The ´(C)´ status message indicates that the monitor executed a "cold" reset after power up.

On following "warm" resets, an abridged headline and "(W)" message will appear.

==============================================

== Evaluation Board V1.4 / Monitor V16.5 ==

== MB90675-controller found ==

== (c) Fujitsu Microelectronics, 1996 ==

==============================================

(W) <ModeByte,ResetVector : 88,FC0046>

If a program has been downloaded, the status message will contain an address indicating the

mode byte which should be 88h and the reset vector of the program downloaded.

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FUJITSU MB90675-Evaluation Board - User Manual

2.2. Technical Characteristics

Power Supply 7V ... 8V, 250 ... 450 mA (normal operation), 5V/3V output

selectable, drives up to 1 A for additional devices

RAM Area 256 KB (including 10 KB used by monitor)

ROM Area 128 KB Monitor ROM

Emulated Controllers MB90675-Series

Serial Interface 2 x RS232 compatible (1 x controller internal and

1 x external controller independent)

Parameters :

9600 Baud, No Parity, 8 Data-Bit, 2 Stop-Bit

(300...38400 Baud selectable for the external port)

Debug Functions All functions are realised in software including Breakpoints,

Single-Step, Watch-Points

A "keyboard break" function occupies one hardware interrupt,

if enabled.

Board Restrictions Software:

INT9 can not be used, because it is needed for the breakpoint

system implementation.

Hardware:

Ports 0, 1, 2.0-2.3, 3.0-3.3 and 3.7 are used for the external

bus system and are not available as general I/O-Ports.

MB90675 Controller Spe-

cific Features

- UART (2 channels) - A/D converter (8 x 10/8 Bit)

- 2 x 8-bit PPG timer - 2 x 16-bit reload timer

- ICU (4 x Input Capture Unit) - I²C interface*

- OCU (8 x Output Compare Unit)

Table 1: Technical Parameters

CE Conformity

The STARTERKIT_16 is conform to the 89/336/EEC - electromagnetic compatibility EEC

law. The following generic test procedures were applied:

- EN 50081 Part 2

- EN 50082 Part 2

It was tested in a typical setup using the MB2141A from Fujitsu Mikroelektronik GmbH.

Thus, it is suitable for industrial environment.

2.3. Evaluation Board Resources

The Evaluation Board was designed in order to leave as many microcontroller resources

available for user evaluation and applications as possible.

All of the I/O ports (port 2.4 - 2.7, 3.4 - 3.6, 4 - 9, A, B) are available for external use via the

on-board connectors. The other ports are available too, but already taken by the external bus

and control signals. These can be used to expand the system (e.g. additional memory).

*I²C is a PHILIPS patent

FUJITSU Mikroelektronik GmbH 1996 - 9 -

FUJITSU MB90675-Evaluation Board - User Manual

The board has various modes to use the on-board RAM in different configurations. On User

Reset the memory mapping is changed to User Mode. So, the user RAM that holds the

application program can be executed in that case. On Monitor Reset the board is initialised to

its defaults, after that it switched to User Mode mapping.

Only a small RAM area (90000h..927FFh) is reserved for monitor variables and data. A few

memory mapped control registers (see memory map) are located in a so-called control bank

(bank 7). Three of the four control registers linked to LEDs can be used for simple user

program indicators.

The lower memory area allows access to the controller built-in RAM, general register banks,

EI²OS descriptors (Extended Intelligent I/O Service) and the controller peripherals. Within the

I/O area 64 Bytes of external memory are accessible via special I/O instructions.

The board provides also control signals for memory areas not taken by any device of the board.

NOTE: Although the MB90670/675 controllers have a 24 bit address size only 20 bits are

used for accessing external memory. Therefore, only 16 physical pages, each 64 KB

of size, are available. Address bits 16 ...19 select one of these pages. Hence, it follows

that address FF1234h and address 0F1234h accesses the same cell in page F.

Only page 0 is exceptional. If the upper four address bits (20 ... 23) are all zero the

absolute page 0' is selected. This page contains the controller peripherals, internal

RAM and parts of external RAM of external page 0. Any other value than zero of the

highest four address bits selects the external page 0. The upper bits (20...23) have no

function referring to the mapping if any other page than page 0 is addressed.

However, the controller provides an "Auto-Cycle" function to prolong external access

time (see MB90675 User Manual). Referring to this function the upper address bits

(20...23) select three areas (0...7, 8...F and absolute page 0') with separate

programmable "Auto-Cycle" number.

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FUJITSU MB90675-Evaluation Board - User Manual

2.4. Evaluation Board Controls

Memory mapping is introduced in this concept as a means of allowing the user to run his own

application as it would be in the final target system, in the final memory area. This is the so-

called User 0 Mode, which is the default operating mode for all users. All other modes

(User 1a, User 1b) can be used by advanced programmers in order to start application

software from one's extension EPROM for example.

From now on the terms "bank" and "page" are used as follows: "Bank" refers to a 64 KB area

of an specific external component. E.g. the two RAM chips contains four RAM banks each

64 KB of size. "Page" refers to a specific 64 KB memory area indicated by the bits 16 ... 19 of

an address. E.g. xAxxxxh accesses page A. That means, every bank is existing only once, but is

accessible in different pages. However, the CPU bank register always refer to the bits 16 ... 19

of an address.

The monitor software resides in two fixed ROM banks on memory pages C and D (see fig. 2).

This area (128 KB) is not available for the user. However, there are 256 KB RAM

(pages 8..B) provided for user program and data.

At the moment of a Monitor Reset (or due to register settings) the monitor ROM is mapped to

the upper area (memory pages E, F) to enable the controller to read the reset vector. After

User Reset these upper pages are taken by mapped RAM or so-called "Module" banks.

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ROM1

ROM0

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peripherals, internal/exernal, I/O memory

Address

xF0000..xFFFFF

xE0000..xEFFFF

xD0000..xDFFFF

xC0000..xCFFFF

xB0000..xBFFFF

xA0000..xAFFFF

x90000..x9FFFF

x80000..x8FFFF

x70000..x7FFFF

x30000..x6FFFF

x20000..x2FFFF

x10000..x1FFFF

x00000..x0FFFF

000000..00FFFF

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expansion area - 256 KB

(selectable by /EXP signal)

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Module 2 (/CS2)

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Module 0 (/CS0)

Monitor User0 User1a User1b

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10KB monitor data

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control register bank

RAM3

RAM2

RAM0

shadow

memory

F

0

2

3

E

D

C

B

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9

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7

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0'

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Module 1 (/CS1)1

Memory Mapping Modes

ROM1

ROM0

RAM3

RAM2

RAM1

RAM0

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Module 0

Module 1

Page Bank

Fig. 2: Memory mapping of the Evaluation Board

Three different 64 KB blocks (Module 0..2) are selectable by additional chip select signals.

Module 0 is selected by CS0, CS1 selects Module 1 and CS2 selects module 2. Module 1

and 2 are always located on page 1 respectively page 2. In Monitor Mode and User Mode 0

the Module 0 is mapped to page 0.

FUJITSU Mikroelektronik GmbH 1996 - 11 -

FUJITSU MB90675-Evaluation Board - User Manual

Address Area

8000..FFFF

2000..7FFF

0D00..1FFF

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internal

RAM

(inclusive EI²OS -descriptors and generall register

banks)

Absolute Page 0' (MB90678)

Monitor User0 User1a User1b

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Module 0

RAM0

no access

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Module 0

00C0..00FF

0100..0CFF

0000..00BF

external

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RAM0

external

controller peripherals I/O

Fig. 3: Memory area 000000..00FFFFh. This page is accessed when

address bits 16..23 (20..23 not output by the controller) are all

zero. The addresses 00xxxxh access this page. However,

10xxxxh accesses the complete external page 0.

In User Mode 1 (sub-mode "a" and "b") RAM 0 is mapped to page 0, so RAM 0 can be

accessed as well on external page 0 as within the external I/O area and upper area on absolute

page 0. In return for it Module 0 is mapped on page E. In sub-mode "b" this area is enlarged to

128 KB so that Module 1 could be accessed on page F.

The RAM on page 0 (in User Mode 1) might be used for accessing the external I/O-area. A

program fixed on ROM (including its own interrupt vector table and plugged as Module 1)

could be started in User Mode 1b by pressing User Reset button.

The low active signal EXP (expansion) set by the Evaluation Board peripherals might be used

to select the remaining external memory area not occupied by the board itself. These signals

(EXP, the module chip selects CSx , the address bus provided by the Evaluation Board and the

address/data bus, the bus control signals provided by the controller itself) might be used for

system expansions.

Eight control bank register and four switches control the evaluation board and its memory

mapping. Three jumpers are needed for further functionality. The control bank register resides

at physical page 7 (see fig. 4). The four switches are placed left beside the Power and the User

RUN LED (see fig. 1).

Evaluation Board Control Bank

15 0

x7xxx0H

x7xxx2H

x7xxx4H

x7xxx6H

x7xxx8H

x7xxxAH

x7xxxCH left display

r/w bit 0

r/w

w

r/w

r/w bit 0

monitor user mapping

user0 user1 mapping

on off activ user

off on user LED

external UART data register

external UART status register

left & right LED display

monitor mode

UART status

UART data

RUN LED

user mode

user LED

right display

Address 0 1

Fig. 4: The eight registers of the Evaluation Board control bank

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FUJITSU MB90675-Evaluation Board - User Manual

/HST-pull up

default setting

MD1-pin: "1" or "0"

user mode preset:

SW3

user sub mode: b

1

or 0 after user reset

or a if user mode 1

AAA

A

AAA

internal

user mode

sub mode

external ROM

Mode Switches

onoff

1

2

3

4

Fig. 5: on-board mode switches block

The memory mapping is controlled by the two control bank registers and two switches:

Monitor Mode register, User Mode register, SW3/3 and SW3/4.

The Monitor (or Master) Mode Register (70000h) selects between Monitor Mode and User

Modes. If bit 0 is set to "0" Monitor Mode mapping is active and the other mapping controls

have no function at all. If bit 0 is set to "1" User Mode mapping is active. It is cleared on

Monitor Reset and set on User Reset.

The User Mode Register (70002h) selects between User Mode 0 and User Mode 1 if the

Monitor Mode register is set to "1" (User Mode). It is cleared on Monitor Reset. After User

Reset (User Reset button) it is set equivalent to User Mode Preset (SW3/3 position). The User

Mode Preset function is triggered off only by pressing the User Reset button. Software User

Reset (Monitor command) sets the User Mode register only if requested by parameter.

Software Reset (controller register) keeps this mapping unchanged.

The User Sub-Mode Switch (SW3/4) does only affect User Mode 1 and selects between User

Mode 1a and 1b. If the Monitor Mode register and the User Mode register are set to "1" the

selected sub-mode "b" (SW3/4 = off) causes the mapping of Module 1 to page F. In sub-mode

"a" (SW3/4 = on) RAM 3 is mapped to page F.

The relation of the controls to the memory modes shows following table:

Board Controls

Memory Mode Monitor Mode

Register

User Mode

Register

Sub-Mode

Switch SW3/4

Monitor 0 - -

User 0 1 0 -

User 1a 1 1 On

User 1b 1 1 Off

The Run LED Register (70004h) controls the RUN LED. It does not affect any other

hardware. However, it is intended as a running-user-program indicator. The monitor clears this

register (LED on, inverse logic bit 0) when it releases the controller for user program and sets

the register (LED off) when it gains control back. Therefore, this register should not be used,

by the User' program.

The User LED Register (70006h) controls the separated red LED and works similar as the

RUN LED. This LED is intended for user's purpose. Writing "1" at bit position 0 switches the

LED on and writing "0" switches it off.

The External UART Register accesses the (external) on-board UART controller. Due to this

controller, the monitor is independent of the timing of the microcontroller's internal UART.

Therefore, the external UART Data Register (70008h) and external UART Status Register

(7000Ah) should not be accessed by the user.

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FUJITSU MB90675-Evaluation Board - User Manual

The two LED Display Registers (7000Ch and 7000Dh) are two write-only register for

controlling the LED Displays. The high byte controls the left LED Display and the low byte the

right one. The different bits are assigned to the LED-segments as follows:

15 14 13 12 11 10 9 8 7 6

5

43210

P1 G1 F1 E1 D1 C1 B1 A1 P0 G0

F0

E0 D0 C0 B0 A0

Note, that any segment is lighted up if the appropriate bit is set to "0" (inverse logic). E.g.

"A2" is coded as (7000Ch)=88A4h and "HI" is coded as (7000Ch)=89F9h.

The "Hardware Standby" pull-up switch (SW3/1) in default position connects HST to a pull-

up resistor for normal operation. This switch can normally be kept in this position even if the

HST -pin of JP39 is used. As the RST -signal of JP42 is only a probe signal, HST can be used

for an external reset circuit. (Note, the differences between RST and HST might be found in

the MB90670/675 user manual.)

The Mode Pin 1 Switch (SW3/2) sets the MD1-pin. SW3/2 in position "On" enables reading

reset vector from external bus (default). Otherwise the vector is read from internal (on-chip)

ROM.

MD0 is hard wired with "1" and MD2 is hardwired with "0". This configuration allows 16 Bit

busses only . EPROM-write mode is not possible.

The Terminal Reset Jumper (JP14) connects the DTR-line of the external RS232 port to a

special reset circuit. Leave it out, if this option is not requested or the terminal causes

misoperation.

The Voltage Selector Jumper (JP18) reduces the whole board power supply voltage to a value

suitable for most 3V and 3.3V circuits. It is intended for further modifications using 3V-

devices. If disabled (default) the voltage is set to 5V.

The A/D-Reference Jumpers (JP21..24) are intended for configuring the external A/D circuit

for test purpose. JP23 connects AVr −-pin to AVSS -pin and JP24 connects AVr +-pin to

AVCC -pin. JP21 connects the AVSS to GND . AVr −is connected to GND too, if both

JP21 and JP23 are enabled. JP22 connects the AVCC to VCC . AVr +is connected to VCC

too, if both JP22 and JP24 are enabled. Disable these jumpers, if the appropriate pin of JP39 is

used.

The Terminal Break Jumper (JP37) enables the external UART chip set to generate a hardware

interrupt. So the user can break the program by pressing any key of the (master) terminal

keyboard. This option occupies hardware interrupt #3 of the microcontroller. Remove the

jumper, if this interrupt resource is needed. Removing the jumper in order to disable the

keyboard break function is not necessary, because the monitor provides a special command

(UBREAK).

The Monitor Reset Button activates the Monitor Reset. The Monitor Mode register and User

Mode register are cleared, i.e. all user mapping modes are disabled.

The User Reset Button activates the User Reset. If the Monitor Mode register is set to 1, the

User Mode register value depends on SW3/3 position (on - User Mode 0, off - User Mode 1).

The reset vector is read from RAM 3 (User Mode 0 and User Mode 1 sub-mode "a") or from

Module 1 (User Mode 1 sub-mode "b" - SW3/3 and SW3/4 off).

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FUJITSU MB90675-Evaluation Board - User Manual

NOTE: On power-on reset the monitor writes a default vector table into the user interrupt

vector area (1 KB from FFC000..FFFFFF ⇔shadow RAM FBC000..FBFFFF).

The Forced Monitor Reset is intended for the case that the Monitor Reset button does not start

the monitor. Depending on user program and what its initialisation routine sets the control

signals for external bus, P37 can be used as I/O port instead as CLK . In order to trigger

monitor mapping push the Monitor Reset button first, keep it pushed then press User Reset.

Release User Reset first then Monitor Reset.

Finally, the RS232 connectors should be mentioned. The external port is intended for monitor

communication. It is the default port of the monitor shell and uses an external (no controller

resource) UART device. The internal port is the default user program port. So the user

program can benefit from the microcontroller resources. It is possible to exchange the

functionality of the ports or to set both functions the same port (e.g. there is only one terminal

available). However, recommended configuration is a terminal on external UART for monitor

control and a second terminal for user program I/O-operation on internal UART0.

FUJITSU Mikroelektronik GmbH 1996 - 15 -

FUJITSU MB90675-Evaluation Board - User Manual

AAAA

A

AAA

A

AAA

A

AAA

A

AAA

A

AAA

AAAA

A

3. Monitor Operation

3.1. General Operation

The monitor can be operated via a PC terminal, like the terminal window of ProMan

(Fujitsu's Programming Manager), the included mini terminal "MT.com" or any other terminal

program.

The default communication parameters are 9600 baud, 8 bit, no parity, 2 stop bits. If possible,

ANSI terminal emulation should be activated.

After pressing the Monitor Reset Button, only the Power LED on the evaluation board should

be active and a message from the Monitor should appear on the terminal. The monitor is then

ready for command input.

3.1.1. Command Input

Commands can be entered, if the monitor has posted the command prompt ">".

This is important since the RS232 interface is realised by a software polling procedure and

characters will get lost if the monitor is busy while characters are typed in.

A command is input by typing the command word or a significant part of it plus appropriate

parameters. The RETURN-key terminates input and executes the command.

The number of letters necessary for command identification depends on the other commands

with same leading letters. For some commands a list with possible (defined) options can be

displayed by typing a comma ',' as parameter (e.g. "baud ,↵").

The monitor provides the following edit functions:

•Mis-typed characters can be erased by using the BACKSPACE key.

•The whole line can be erased by using the DELETE key.

•Pressing the TAB key, will automatically re-type one of four previous commands. Pressing

again re-types the next.

•A complete command line can be skipped by pressing the ESC key.

It depends on the terminal whether an edit function is available or not.

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FUJITSU MB90675-Evaluation Board - User Manual

3.1.2. Number Formats

Most commands need parameters which are usually numbers. The monitor uses the following

convention regarding the representation or base:

By default, all numeric inputs are regarded as HEXADECIMAL numbers

•Characters '0..9' and 'A..F' or 'a..f'.

•Decimal numbers can be input by prefixing the number

with the two characters "D ' " or with the character "!".

Example

e.g. D ' 100 or !100 equate to 100 dec.

The default input format can be changed to decimal by the command "DECIMAL".

•Characters '0..9'.

In this case, hexadecimal numbers can be input by the two prefix characters "H ' " or with

the single character "$".

Example

e.g. H ' F00 or $F00 equate to 0F00 hex.

NOTE: Numbers output by the monitor are always in HEX format !

The monitor features the capability of accepting symbol names for parameter inputs. To use

this option, Symbol information must be available (see SYMBOL command group).

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3.2. Monitor Commands

The Monitor Commands are grouped into different classes.

The figure below gives an overview:

Monitor Commands

Environment

HELP

HEXADECIMAL

DECIMAL

EMULATION

CLS

PORT

UPORT

BAUD

VERIFY

UBREAK

COLORSET

STATUS

UPDATE

HEXFORMAT

Memory

ENTER

EWORDS

ELONG

EBIT

DUMP

DWORDS

DBITS

DLONG

DBR

DSTACK

FILL

SEARCH

COMPARE

MOVE

CHECK

CONVERT

Program Execution

GOTOTRACE

STEP

MRESET, RESET

URESETEXIT

BREAK

BCLEAR

BENABLE

BDISABLE

SCLEAR

SACTIVATE

SYMBOLS

Debugging

REGISTER

LDISASSMEBLE

DISASSEMBLE

SAVESET

INITUSER

SHOW

IOREAD

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FUJITSU MB90675-Evaluation Board - User Manual

3.3. Environment Commands

3.3.1. HELP, H, ? [Command]

Print Help Text

The HELP command prints a short overview of the most important monitor commands.

Shortcuts for this are H and ?.

If a command is named, specific help is displayed.

>help d↵

... Displays all commands with 'D' as first letter.

3.3.2. HEXADECIMAL, DECIMAL

Specify Default Input Mode

The HEXADECIMAL or DECIMAL command specifies the default format of numbers

required for command parameters.

Power On default is HEXADECIMAL.

>decimal↵

... Changes to decimal input format.

3.3.3. VERIFY [ON | OFF]

Enable/disable Memory Write-Read-Verify mode

Most of memory accesses requested by the user via monitor are back-read if VERIFY mode it

is set. Correct writing can be checked this way. Without parameter the current mode is

displayed otherwise it is set as requested.

Power on default is ON.

>verify off↵

... Disables the write-verify-check.

NOTE: Some peripheral controller registers or board registers are write-only or have different

function when read or are valid only for one read access. These registers will always

cause an ERROR-message.

E.g. if UART data register is written to for sending one char (by EDIT-command)

and it is re-read, a possible received character lost. Switch VERIFY off if such

registers are manually edited.

NOTE: If VERIFY is switched off the correct writing of break/trace points is not checked.

Therefore, VERIFY should be disabled only if necessary.

3.3.4. UPDATE [CHANGE | ALWAYS]

Change colouring mode of REGISTER command

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FUJITSU MB90675-Evaluation Board - User Manual

UPDATE controls the highlighting of the changed CPU register (see commands REGISTER,

EMULATION). If ALWAYS is selected the colouring is cleared after every display request. If

CHANGE is selected it keeps on colouring the last changes until the next modifying has been

done. Without parameter the current mode can be displayed.

Power on default is ALWAYS.

>update change↵

... Selects Change mode.

3.3.5. HEXFORMAT [INTEL | MOTOROLA]

Change record format of SAVE command

This command is used to change the format of a HEX record dump via SAVE command (see

command SAVE). Without parameter the current mode can be displayed, otherwise the

requested format is set.

Power on default is INTEL.

>hexformat moto↵

... Selects Motorola format

3.3.6. BAUD [

O

PTION

]

Set transmission rate of the external UART port

This command sets the transmission rate of the external UART port. Without parameter the

current mode can be displayed.

Options: 300, 1200, 2400, 4800, 7200, 9600, 19200, 38400

>baud 38↵

... Sets 38400 Baud for the external port.

If the rate has been changed, the terminal baud rate must be changed, too. If they can not

immediately synchronise each other, the Monitor Reset button should be pressed.

NOTE: Another way to change the baud rate is the Auto-Connect function: The Escape key

(ASCII 27) of the terminal connected to the external port of the Evaluation Board

should be kept pressed to automatically repeat sending. Then the Monitor Reset must

be pressed (do not release the Escape key). After this, the monitor checks the terminal

baud rate and sets this rate as its own.

NOTE: The Auto-Connect function might be used for setting the user's favoured baud rate

that is stored as default of the terminal program. It might also be used to re-

synchronise the Evaluation Board, if an unexpected error occurred during download

and if the previous baud rate could not be reset.

NOTE: The power on default is 9600 Baud. If the value was changed by command or Auto-

Connect the monitor keeps this value also after a Monitor Reset. However, the next

power on reset will reset the rate to 9600 Baud.

The baud rate functions are NOT available for the internal UART port.

- 20 - FUJITSU Mikroelektronik GmbH 1996

Fujitsu F2MC-16L Series User manual

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