ZiLOG eZ80 User manual

ZiLOG Worldwide Headquarters • 532 Race Street • San Jose, CA 95126-3432
Telephone: [phone] • Fax: [phone] • www.ZiLOG.com
UM015201-0603
ZiLOG Development Platforms
eZ80
®
Sales Demonstration Platform
User Manual

User Manual UM015201-0603
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
ii
This publication is subject to replacement by a later edition. To determine whether a later edition exists, or to
request copies of publications, contact:
ZiLOG Worldwide Headquarters
532 Race Street
San Jose, CA 95126-3432
Telephone: [phone]
Fax: [phone]
Document Disclaimer
ZiLOG is a registered trademark of ZiLOG Inc. in the United States and in other countries. All other products and/or service
names mentioned herein may be trademarks of the companies with which they are associated.
©2003 by ZiLOG, Inc. All rights reserved. Information in this publication concerning the devices, applications, or
technology described is intended to suggest possible uses and may be superseded. ZiLOG, INC. DOES NOT ASSUME
LIABILITY FOR OR PROVIDE A REPRESENTATION OF ACCURACY OF THE INFORMATION, DEVICES, OR
TECHNOLOGY DESCRIBED IN THIS DOCUMENT. ZiLOG ALSO DOES NOT ASSUME LIABILITY FOR
INTELLECTUAL PROPERTY INFRINGEMENT RELATED IN ANY MANNER TO USE OF INFORMATION, DEVICES, OR
TECHNOLOGY DESCRIBED HEREIN OR OTHERWISE. Except with the express written approval of ZiLOG, use of
information, devices, or technology as critical components of life support systems is not authorized. No licenses are
conveyed, implicitly or otherwise, by this document under any intellectual property rights.

User Manual UM015201-0603
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
iii
Safeguards
The following precautions must be observed when working with the devices
described in this document.
Always use a grounding strap to prevent damage resulting from electrostatic dis-
charge (ESD).
Caution:

User Manual UM015201-0603 Table of Contents
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
iv
Table of Contents
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
eZ80® Sales Demonstration Platform Block Diagram . . . . . . . . . . . . . . . . . . . . . 2
Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Jumper Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Jumper Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
eZ80® Sales Demonstration Platform Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
PCB Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Demonstration Setup Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Using ZDSII to Download and Run ez80l92_demo_platform.pro . . . . . . . . . 7
Peripheral Bus Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
I/O Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Product User Guide UM015201-0603
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
v
List of Figures
Figure 1. The eZ80® Sales Demonstration Platform, Top View . . . . . . . . . . . . 1
Figure 2. eZ80® Sales Demonstration Platform Block Diagram . . . . . . . . . . . . 2
Figure 3. eZ80® Sales Demonstration Platform Block Diagram . . . . . . . . . . . . 3
Figure 4. eZ80® Sales Demonstration Platform Demo Setup . . . . . . . . . . . . . . 4
Figure 5. eZ80® Sales Demonstration Platform Peripheral Bus Connector Pin
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 6. eZ80® Sales Demonstration Platform I/O Connector Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 7. eZ80® Sales Demonstration Platform Schematic . . . . . . . . . . . . . . 14
Figure 8. eZ80® Sales Demonstration Platform . . . . . . . . . . . . . . . . . . . . . . . 15

User Manual UM015201-0603
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
vi
List of Tables
Table 1. eZ80® Sales Demonstration Platform Demo Features . . . . . . . . . . . 7
Table 2. Peripheral Bus Connector Pin Identification (see Figure 5 for Pin #s) 9
Table 3. I/O Connector Pin Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

User Manual UM015201-0603 Kit Contents
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
1
Kit Contents
• One (1) eZ80® Sales Demonstration Platform with LCD Display and module
• Four (4) AA batteries
• One (1) ZPAK II Debug Interface Module (includes TIM)
• One (1) 40-connector ribbon cable
• One (1) DB9-DB9 Serial I/O Cable
• One (1) ID10 to DB9 cable
• One (1) Ethernet Hub
• One (1) Ethernet Hub User Manual
• Two (2) 7.5V AC Power supplies for Ethernet hub (one international)
• Two (2) 5V AC Power supplies with adapters
• One (1) CDROM with ZDS II software, sample projects, and documentation
• Three (3) Cat-5 Patch Cables
The eZ80® Sales Demonstration Platform works with the eZ80L92,
eZ80F91, and eZ80F92 modules. For simplicity, this document refers to
the eZ80L92 module. Instructions apply to all three modules, however.
Introduction
The eZ80® Sales Demonstration Platform provides a flexible, portable platform for
conducting training programs and demonstrations using a number of ZiLOG
microcontroller and microprocessor devices. A ZiLOG eZ80®processor-equipped
module plugs into this platform.
Figure 1 shows the top view of the eZ80® Sales Demonstration Platform.
Figure 1. The eZ80® Sales Demonstration Platform, Top View
Note:

User Manual UM015201-0603 eZ80® Sales Demonstration Platform Block
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
2
The eZ80® Sales Demonstration Platform can be powered by the on-board batter-
ies (stand-alone configuration) or by the AC adapter. Both configurations feature:
• Serial communication using eZ80®UART ports and adapter board connectors
• Ethernet communication using the eZ80L92 or eZ80F92 module
• LCD displays relevant demo data
• ZDI operation using external ZPAK
Do not use battery power and AC power at the same time. Doing so will damage
the board.
eZ80® Sales Demonstration Platform Block Diagram
Figure 2 illustrates a block diagram of the eZ80® Sales Demonstration Platform.
Figure 2. eZ80® Sales Demonstration Platform Block Diagram
Hardware Overview
The following section provides an overview of the eZ80® Sales Demonstration
Platform. The current release supports the eZ80L92 module, p/n
eZ80L925048MOD.
Requirements
The eZ80® Sales Demonstration Platform requires an eZ80®module and 5VDC
@ 1.5A, provided by an AC adapter or four 1.5V batteries.
Caution:
Reset ZDI
RS-232
Driver
I
2
C
5 volts
Power Supply
Four 1.5V
3 Volts
eZ80® Module
RS-232
Batteries
LCD

User Manual UM015201-0603 Jumper Settings
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
3
Jumper Locations
Figure 3 illustrates the jumpers on the eZ80® Sales Demonstration Platform.
Figure 3. eZ80® Sales Demonstration Platform Block Diagram
Jumper Settings
J1 CPU Acknowledgement for
Motorola Bus Mode
IN = enabled
OUT = disabled (default)
J3 External Flash Access on
eZ80®Module
IN = Flash access disabled
OUT = Flash access enabled (default)
J4 External Flash Boot Block Write
Access on eZ80®Module
IN = write enabled
OUT = write disabled (default)
J6 IrDA Control IN = IrDA transceiver on the eZ80®module disabled (default)
OUT = IrDA transceiver on the eZ80®module enabled when
PB6 is set to 0
J12 COM2 (J11) Control IN = Disabled
OUT = Enabled (default)
J14 COM1 (J13) Control IN = Disabled
OUT = Enabled if PB6 set to 1 (default)
ZDI
JP2
JP1 COM2COM1
LCD Display
SW1
J14
J2
J5
5VDC
ON
Battery Switch
OFF
J8
I2C Display
Connector
J12
J1 J6
J3
SW2 SW3
J9
J7
J4

User Manual UM015201-0603 eZ80® Sales Demonstration Platform Setup
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
4
eZ80® Sales Demonstration Platform Setup
Overview
A single software project called ez80l92_demo_platform.pro is included on the
eZ80® Sales Demonstration Platform CD-ROM. The demo software is preloaded
into eZ80L92 Flash memory. Connect the demonstration platform to a PC as
described below and the demo is ready to run.
Instructions for loading the demo project are also included for code download and
debugging demonstrations.
PCB Notes
• To use batteries in this demonstration, load four 1.5-Volt batteries into the bat-
tery holder and turn on battery switch S1.
• X10 port J10 is not loaded for this release.
• The LCD module is a Matrix Orbital LCD2041. For further information about
the Matrix Orbital LCD2041 20-column by 4-line display, go to www.matrixor-
bital.com. This LCD display is a 5-volt display with an I2C or RS-232 interface.
This kit uses the I2C interface only.
Demonstration Setup Procedure
Ensure that the eZ80® Sales Demonstration Platform is configured and working
properly as described in the eZ80® Sales Demonstration Platform Quick Start
Guide (QS0024). Then disconnect the ZPAKII from the PC and platform and per-
form the following procedures. Use Figure 4 as a reference.
Figure 4. eZ80® Sales Demonstration Platform Demo Setup
ZDI
JP2
JP1 COM2COM1
LCD Display
SW1
J14
J2
J5
5VDC
ON
Battery Switch
OFF
J8
I2C Display
Connector
J12
J1 J6
J3
SW2 SW3
J9
J7
J4
To open COM port
on PC

User Manual UM015201-0603 eZ80® Sales Demonstration Platform Setup
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
5
1. Connect a 9-pin serial cable from the PC COM port to connector COM1 on the
eZ80® Sales Demonstration Platform.
2. On the demonstration platform, do one of the following:
Connect power to the platform using the AC adapter.
or
Insert four AA batteries into the batter holder on the bottom of the
demonstration platform and turn the BATTERY switch on.
The two LEDs on the demonstration platform blink alternately and the LCD
scrolls feature information for the eZ80L92 chip and eZ80L92 module twice.
When the display completes, the LCD screen displays the time and date.
Proceed with the following instructions to establish communication between
the PC and demonstration platform.
Do not use battery power and AC power at the same time. Doing so will damage
the board.
3. Launch HyperTerminal on the PC by opening the Start menu and selecting
Programs →Accessories →HyperTerminal, or Programs →Accessories
→Communications →HyperTerminal, depending on your Windows OS
version.
4. In the Connect To dialog, set the Connect Using: drop-down menu to match
the COM port to which the eZ80® Sales Demonstration Platform is connected.
Click OK.
5. In the resulting COMx Properties dialog, enter the following port settings and
click OK:
Bits per second: 57600
Data bits: 8
Parity: None
Stop bits: 1
Flow control: None
6. Press the RESET button (SW1) on the eZ80® Sales Demonstration Platform.
The demonstration platform scrolls through the eZ80L92 and eZ80L92 module
features twice, then displays the time and date.
When the demo completes, HyperTerminal displays the following:
ZiLOG eZ80 Demonstration Platform Program (1.0)
Featuring the eZ80L92
eZ80L92>
Caution:

User Manual UM015201-0603 eZ80® Sales Demonstration Platform Setup
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
6
7. Press the hkey to display the following help text:
eZ80L92> h
ZiLOG eZ80 Demonstration Platform Program (1.0)
Featuring the eZ80L92
C activate/deactivate real time Clock
D set Date
H Help menu
L backLight - On/Off
M display Memory
T set Time
W Write to LCD
2 decrease LED blink speed
3 increase LED blink speed
- decrease LED blink speed
+ increase LED blink speed
? Help menu
eZ80L92>
8. Set the date on the demonstration platform. Type Dat the prompt and follow
the on-screen instructions. A typical session appears as follows:
eZ80L92> d
Current date is SUNDAY 1-01-2083
Enter new date (dd-mm-yyyy): 20-06-2003
Enter new day-of-the-week: Friday
New date is FRIDAY 20-06-2003
eZ80L92>
9. Set the time on the demonstration platform. Type Tat the prompt and follow
the on-screen instructions. A typical session appears as follows:
eZ80L92> t
Current time is 0:41:06
Enter new time (hh:mm:ss): 11:43:00
New time is 11:43:00
eZ80L92>

User Manual UM015201-0603 eZ80® Sales Demonstration Platform Setup
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
7
You can now run through the available demo project features. A summary of avail-
able functions is provided in Table 1.
Using ZDSII to Download and Run ez80l92_demo_platform.pro
Use the following instructions to demonstrate code download and running the
demo project in the ZDSII debugger.
1. Connect the ZPAK II to the eZ80® Sales Demonstration Platform as described
in the eZ80® Sales Demonstration Platform Quick Start Guide (QS0024).
2. Launch ZDS II. (Start menu →Programs →ZiLOG ZDS II–eZ80_<Version>
→ZDS II–eZ80_<Version>).
3. In ZDS II, select File →Open Project, and navigate to the following file path:
c:\Program Files\ZiLOG\ZDSII_ez80_<version>\applica-
tions\eZ80L92_Demo_Platform\src
4. Select the ez80l92_demo_platform.pro project and click Open. A list of
source files appears in the Workspace panel.
5. Select Project →Settings.
Table 1. eZ80® Sales Demonstration Platform Demo Features
Feature Description
Activate/Deactivate Real Time
Clock
Demonstrates Real Time Clock control. Deactivating the Real
Time Clock removes the date and time display from the demon-
stration platform LCD screen.
Set Date Sets Real Time Clock date.
backlight - On/Off Toggles the demonstration platform LCD screen on and off.
Display Memory Displays the contents of a specified memory segment. Allows
the user the specify a starting address and number of bytes to
display.
Set Time Sets Real Time Clock time.
Write to LCD Allows the user to write up to four lines of 20 characters each to
the sales demonstration platform LCD display.
Decrease LED blink speed Slows the blink rate of the two LEDs on the demonstration plat-
form by 16ms each time the user presses the 2 or - key. Press-
ing switch SW2 on the demonstration platform has the same
effect.
Increase LED blink speed Increases the blink rate of the two LEDs on the demonstration
platform by 16ms each time the user presses the 3 or + key.
Pressing switch SW3 on the demonstration platform has the
same effect.

User Manual UM015201-0603 Peripheral Bus Connector
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
8
6. The Settings dialog appears. Select the Debugger tab. In the Debugger tab,
click on the Configure ZPAK II button.
7. The Configure ZPAK II dialog box appears. In the IP Address field, a default IP
address, 192.168.1.50, is displayed and highlighted. Enter the ZPAK II IP
address you configured during hardware install. (Either the default of
192.168.1.50 or the IP address to which you set the ZPAK II.) Leave the other
settings as they are.
8. Click OK in the Configure ZPAK II dialog, and then click OK in the Project Set-
tings dialog.
9. Select Build →Rebuild All. Wait for the build to complete (Status panel indi-
cates Build Complete).
10. Download the demo into the eZ80® Sales Demonstration Platform by select-
ing Build →Debug →Reset.
11. To run the demo, select Build →Debug →Go.
12. When the demo software runs, the demonstration platform LCD screen dis-
plays ez80L92 and eZ80L92 module features, then displays the time and
date.
13. Select Build → Debug → Stop Debugging to stop the demo.
Peripheral Bus Connector
Figure 5 illustrates the 60-pin peripheral bus connector, JP1. Table 2 describes
the pins and their functions. (Pin 50 on the eZ80L92 module connectors line up
with pin 60 on the eZ80® Sales Demonstration Platform board connectors. The
connector is keyed to help orient the board.) Refer to the module product specifi-
cation on the demonstration platform CD for pin functions and locations.

User Manual UM015201-0603 Peripheral Bus Connector
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
9
Figure 5. eZ80® Sales Demonstration Platform Peripheral Bus Connector Pin Configuration
Table 2. Peripheral Bus Connector Pin Identification (see Figure 5 for Pin #s)
Function
Pull
Up/Down*
Signal Direction
(with respect to
the Platform
board) Description
A0 - A23 n/a Bidirectional 24-bit address bus
D0 - D7 n/a Bidirectional 8-bit data bus
TRSTN OUT Reset for On-Chip Instrumentation (OCI).
F91_WE OUT Low enables write to on-chip Flash memory.
If this pin is unconnected, on-chip Flash
memory is write-protected.
DIS_FLASH OUT External Flash Memory enable input.
CS0 - CS2 n/a IN Chip Selects for on-board or external devices
MREQ Bidirectional Bus Cycle Memory indication.
Notes: *External capacitive loads on RD, WR, IOREQ, MREQ, D0–D7 and A0–A23 must be below 10pF to
satisfy timing requirements for the eZ80®CPU. All unused inputs must be pulled to either VDD or
GND, depending on their inactive levels to reduce power consumption and to reduce noise sensitivity.
To prevent EMI, the EZ80CLK output can be deactivated by software in the eZ80F92 Peripheral
Power-Down Register. All inputs are CMOS level 3.3V (5V tolerant), except where otherwise noted.
A13
GND
A23
D4
-RD
-F91_WE
-MREQ
A17
GND
VCC_33V
-IOREQ
VCC_33V
D7
A12
A20
A8
-TRSTN
D2
A3
A10
D6
VCC_33V
A19
A0
A22
A14
A16
D1
A15
D5
A9
-CS0
A7
GND
D3
-WR
GND
D0
-BUSACK
A5
A21
A11
A1
A4
A18
A6
-CS1
-CS2
-INSTRD
A2
GND
-DIS_FLASH
-BUSREQ
J
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
JP1

User Manual UM015201-0603 Peripheral Bus Connector
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
10
IOREQ Bidirectional Bus Cycle I/O indication.
RD Bidirectional Bus Cycle read indication.
WR Bidirectional Bus Cycle write indication.
INSTRD n/a IN Bus Cycle Instruction read indication
BUSACK IN Bus Acknowledge output
BUSREQ Pull-Up 10k OUT Bus Request input
V
CC
n/a n/a 3.3 V Supply Input Pin
GND n/a n/a V
SS
/Ground (0V)
Table 2. Peripheral Bus Connector Pin Identification (see Figure 5 for Pin #s)
Function
Pull
Up/Down*
Signal Direction
(with respect to
the Platform
board) Description
Notes: *External capacitive loads on RD, WR, IOREQ, MREQ, D0–D7 and A0–A23 must be below 10pF to
satisfy timing requirements for the eZ80®CPU. All unused inputs must be pulled to either VDD or
GND, depending on their inactive levels to reduce power consumption and to reduce noise sensitivity.
To prevent EMI, the EZ80CLK output can be deactivated by software in the eZ80F92 Peripheral
Power-Down Register. All inputs are CMOS level 3.3V (5V tolerant), except where otherwise noted.

User Manual UM015201-0603 I/O Connector
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
11
I/O Connector
Figure 6 illustrates the 60-pin I/O Connector, JP2. Table 3 describes the pins and
their functions. (Pin 50 on the eZ80L92 and eZ80F92 module connectors line up
with pin 60 on the eZ80® Sales Demonstration Platform board connectors.)
Figure 6. eZ80® Sales Demonstration Platform I/O Connector Pin Configuration
Table 3. I/O Connector Pin Identification
Function
Pull
Up/Down
Signal
Direction Description
PA0 - PA7 Bidirectional Not used for eZ80L92 and eZ80F92 modules.
PB0 - PB7 Bidirectional These pins can be used for general-purpose I/O.
They can be individually programmed as input or out-
put and can also be used individually as interrupt
inputs. Each Port B pin, when programmed as output,
can be selected to be an open-drain or open-source
output.
PB0
-HALT_SLP
PA1
PD7
EZ80CLK
VCC_33V
PC1
PB1
PB3
GND
PD4
PA6
PD2
GND
PD0
PC6
PC0
-CS3
TRIGOUT
TMS
PA4
PD3
PA7
PC7
PB4
TDO TDI
GND
-WAIT
PA2
PC4
VCC_33V
PA5
RTC_VDD
PC5
GND
-NMI
PC3
GND
PC2
PA3
IICSDA
PA0
PD5
IICSCL
VCC_33V
PD6
PD1
PB2
TCK
-RESET
-FLASHWE
PB7
GND
PB5
-DIS_IRDA
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
JP2

User Manual UM015201-0603 I/O Connector
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
12
PC0 - PC7 Bidirectional These pins can be used for general-purpose I/O.
They can be individually programmed as input or out-
put and can also be used individually as interrupt
inputs. Each Port C pin, when programmed as output,
can be selected to be an open-drain or open-source
output. Port C is multiplexed with one UART.
PD0 - PD7 Bidirectional These pins can be used for general-purpose I/O.
They can be individually programmed as input or out-
put and can also be used individually as interrupt
inputs. Each Port D pin, when programmed as output,
can be selected to be an open-drain or open-source
output. Port D is multiplexed with one UART.
TDO IN JTAG Data Output pin.
TDI OUT JTAG Data Input pin.
ZDA Bidirectional ZDI Data I/O. (Shared with TDI pin.)
TRIGOUT IN Active High trigger event indicator.
TCK PU 10K OUT JTAG Input. High on reset enables ZDI mode; Low on
reset enables OCI debug.
ZCL OUT ZDI Clock Input. High on reset enables ZDI mode;
Low on reset enables OCI debug. (Shared with TCK
pin.)
TMS PU 10K OUT JTAG Test Mode Select Input.
RTC_V
DD
n/a RTC supply from eZ80®module battery.
CLKOUT IN 20MHz synchronous CPU clock output from product
module.
IICSCL PU 4k Bidirectional I2C Bus Clock.
IICSDA PU 4k Bidirectional I2C Data Clock.
FlashWE PU 10K OUT When low, enables write operation on boot block of
external Flash memory on the module.
CS3 IN Chip select for on-board or external devices
DIS_IRDA PU 10K OUT Low disables module on-board IRDA transceiver to
use PD0/PD1 UART pins externally.
RESET PU 2k Schmitt Trigger
OUT, Active
Low
Reset Output from module or push-button reset.
Table 3. I/O Connector Pin Identification (Continued)
Function
Pull
Up/Down
Signal
Direction Description

User Manual UM015201-0603 I/O Connector
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
13
WAIT PU 2k OUT Driving the WAIT pin Low forces the eZ80®CPU to
provide additional clock cycles for an external periph-
eral or external memory to complete its READ or
WRITE operation.
HALT_SLP IN, Active Low A Low on this pin indicates that the eZ80®CPU
enters either HALT or SLEEP mode because of exe-
cution of either a HALT or SLP instruction.
NMI PU 10K Schmitt Trigger
OUT, Active
Low
The NMI input is a higher priority input than the
maskable interrupts. It is always recognized at the
end of an instruction, regardless of the state of the
interrupt enable control bits. This input includes a
Schmitt trigger to allow RC rise times. This external
NMI signal is combined with an internal NMI signal
generated from the WDT block before being con-
nected to the NMI input of the eZ80®CPU.
V
CC
n/a 3.3V Supply Input Pin.
GND n/a V
SS
/Ground (0V)
Table 3. I/O Connector Pin Identification (Continued)
Function
Pull
Up/Down
Signal
Direction Description

User Manual UM015201-0603 Schematic
ZiLOG Development Platforms
eZ80® Sales Demonstration Platform
14
Schematic
Figures 1 and 2 provide schematics of the eZ80® Sales Demonstration Platform.
Figure 1. eZ80® Sales Demonstration Platform Schematic
ZDI INTERFACE
connector 1 connector 2
DIS_FL
RES
DIS_IrDA
FL_WE
OFF BOARD
I2C
DISPLAY I2C
Put R17 and R18 in only
when Encore! F08 Board
is used
Motorola Mode
-DACK_EN
OFF BOARD DATA BUS
GND TDI VCC_33V
TCK
PB0
-HALT_SLP
PA1
PD7
A13
GND
EZ80CLK
A23
VCC_33V
D4
PC1
PB1
-RD
-F91_WE
PB3
GND
PD4
-MREQ
A17
PA6
PD2
GND
VCC_33V
GND
PD0
PC6
-IOREQ
PC0
VCC_33V
D7
A12
A20
-CS3
A8
-TRSTN
TRIGOUT TMS
D2
A3
PA4
A10
D6
VCC_33V
PD3
PA7
PC7
A19
A0
A22
PB4
TDO TDI
GND
A14
-WAIT
A16
D1
PA2
A15
D5
A9
PC4
-CS0
VCC_33V
PA5
A7
RTC_VDD
GND
D3 -WR
GND
PC5
GND
D0
-NMI-BUSACK
A5
A21
PC3
A11
A1
A4 GND
PC2
A18
PA3
IICSDA
PA0
PD5
A6
-CS1
IICSCL
VCC_33V
PD6 PD1
-CS2
PB2
-INSTRD
TCK
A2
GND
-DIS_FLASH
VCC_33V
-BUSREQ
-RESET
-FLASHWE
PB7
GND
GND
-WR DB0 DB2 DB4
DB6 -CS2
VCC_5V
A0 -RD DB1
DB3 DB5
DB7
-RESET
GND IICSCL
-WAIT -CS2
-CS2
-WR
DB0 DB1
DB2 DB3
DB4 DB5
DB6 DB7
D0 D1 D2 D3 D4 D5 D6 D7
GND
PB5
PB3
PB4
VCC_5V IICSDA IICSCL GND
VCC_5V
GND
VCC_33V
VCC_5V
GND
IICSDA VCC_5V
GND
VCC_33V
VCC_33V
VCC_33V
-DIS_IRDA
VCC_33V
VCC_5V
GND
PB6
R7 100
R2 680
U7C
74LV05
5
6
R17 4.7K
SW2 SW PUSHBUTTON
R5 10K
J7 Header 3x2
12 34 56
R32 10K
R8 100
J8
1 2 3 4
D1
RED
2
1
J4
1
2
D2
YEL
2
1
R18 4.7K
SW3 SW PUSHBUTTON
R6 10K
C17 0.1uF
R4
10K
JP2 HEADER 30x2/SM
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
36
38
40
42
44
46
48
50
52
54
56
58
60
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
51
53
55
57
59
U1
74ACT245
2
3
4
5
6
7
8
9
19
1
18
17
16
15
14
13
12
11
20
10
A0 A1 A2 A3 A4 A5 A6 A7
G
DIR
B0 B1 B2 B3 B4 B5 B6 B7
VCCGND
J1
1
2
R30 10K
J6
1
2
J5
1 2 3 4
J3
1
2
R3
680
JP1 HEADER 30x2/SM
2 4
6
8
10 12
14
16
18
20
22
24
26
28
30
32 34
36
38
40
42
44
46
48
50 52
54
56
58 60
1
3 5
7
9
11
13
15
17 19
21 23
25
27 29 31
33
35 37
39
41 43
45 47
49
51
53 55 57
59
J2 HEADER 10X2
12 34 56 78 910 11 12 13 14
15 16 17 18 19 20