Freescale Semiconductor Demonstration Board DEMO9S08AC60E User manual

© Freescale Semiconductor, Inc., 2007. All rights reserved.
Freescale Semiconductor
User’s Guide DEMO9S08AC60EUG
Rev. 0.1, 11/2007
DEMO9S08AC60E
User’s Guide

DEMO9S08AC60EUG
Rev. 0.1, 11/2007
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User’s Guide — DEMO9S08AC60E
Table of Contents
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Section 1.
1.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2 System Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.3 DEMO9S08AC60E Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.4 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.5 References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.6 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.7 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.8 Development Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.8.1 Integrated BDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.8.2 BDM Header . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.8.3 Socketed MCU. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1.9 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.9.1 USB-BDM Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.9.2 External Power Jack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.9.3 I/O Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.9.4 3 Volt Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.10 Reset Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.11 Clock Source. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.12 RS-232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.13 User Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.13.1 Pushbutton Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.13.2 Light Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.13.3 Rocker Switches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.13.4 Accelerometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.13.5 Light Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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1.13.6 Potentiometer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.13.7 I/O Connector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

User’s Guide — DEMO9S08AC60E
List of Figures
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1-1 DEMO9S08AC60E Top Side. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

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User’s Guide — DEMO9S08AC60E
List of Tables
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1-1 MC9S08AC60 Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1-2 BDM Connector (J32) Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1-3 Jumper Settings in USB Power Mode . . . . . . . . . . . . . . . . . . . . . . . . 14
1-4 Jumper Settings in EXT Power Mode . . . . . . . . . . . . . . . . . . . . . . . . 15
1-5 Jumper Settings in I/O Connector Power Mode . . . . . . . . . . . . . . . . 15
1-6 RS-232 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1-7 COM Connector (J34) Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1-8 Pushbutton Switch (SW1 - SW4) Connections . . . . . . . . . . . . . . . . . 18
1-9 Light Bar (LED1) Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1-10 Rocker Switch (SW5) Connections. . . . . . . . . . . . . . . . . . . . . . . . . . 19
1-11 Accelerometer (U5) Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1-12 I/O Connector (J35) Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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User’s Guide — DEMO9S08AC60E
DEMO9S08AC60E User’s Guide, Rev. 0.1
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Section 1.
1.1 Introduction
The DEMO9S08AC60E is a demonstration board for the Freescale
MC9S08AC60. Through the on-board BDM port, the DEMO9S08AC60E
allows users to develop code and evaluate the MC9S08AC60 processor. To set
up and run the included demo program, please refer to the Quick Start guide
supplied with the DEMO9S08AC60E. There is also a soft copy of the quick
start guide on the included resource CD.
1.2 System Requirements
An IBM PC or compatible running Windows®98, Windows 2000, Windows
NT®(version 4.0), or Windows®XP with at least 32MB of RAM an RS-232
serial port, and a USB port.

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1.3 DEMO9S08AC60E Layout
Figure 1-1DEMO9S08AC60E Top Side

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1.4 Features
• MC9S08AC60 CPU
– 20 MHz Internal Bus Frequency
– 60 Kbytes of on-chip in-circuit programmable FLASH
–2 Kbytes of on-chip RAM
– 16-channel, 10-bit analog-to-digital converter
–Two SCI modules
– SPI module
–8-pin keyboard interrupt (KBI) module
–54 general-purpose input/output (I/O) pins
• Socketed 64 pin LQFP package
• Power and communication through the integrated USB-BDM cable
• External power jack for optional DC power supply (+7 to +12 VDC)
• 40 Pin expansion connector
• Four push-button user switches
• Ten LED light bar with 8 connected to I/O port (2 user assignable)
• Eight port rocker switch connected to I/O port
• All I/O pins can be disconnected from demo board for alternate use
• Master reset switch
• Freescale MMA6270QT Accelerometer
• On-board visible light sensor
• Potentiometer connected to the ADC
• On-board RS-232 serial port
• 4.5" x 3.5" board size

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1.5 References
Thefollowingreferencedocumentsareincludedonthe enclosed documentation
CD:
• DEMO9S08AC60E_QS.pdf -- Quick Start Guide
• SPF-20805.pdf -- Schematic
• DEMO9S08AC60E_UG.pdf -- User’s Guide (this document)
1.6 Getting Started
To get started quickly, please refer to the DEMO9S08AC60E Quick Start
Guide. This guide will walk you through connecting your DEMO9S08AC60E
to your PC, running a test program, and installing CodeWarrior Development
Studio.
1.7 Memory Map
The table below shows the MC9S08AC60 memory map. Accessing reserved
memory locations will produce unpredictable results. Accessing
unimplemented locations will produce an illegal-address reset.
Table 1-1 MC9S08AC60 Memory Map
$0000 - $006F Direct Page Registers 112 Bytes
$0070 - $086F RAM 2048 Bytes
$0870 - $17FF Flash 3984 Bytes
$1800 - $185F High Page Registers 96 Bytes
$1860 - $FFFF Flash 59,296 Bytes
1.8 Development Support
Application development and debug for the MC9S08AC60 is supported
through the on-board USB - BDM interface (J33). There is also a 6 pin stand
alone BDM interface available (J32). This header is non-populated in the
default configuration and can be installed by the user if needed.

DEMO9S08AC60E User’s Guide, Rev. 0.1
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1.8.1 Integrated BDM
The DEMO9S08AC60E features an integrated USB-BDM debugger from P&E
Microcomputer Systems. All necessary signals are provided via the integrated
debugger. A USB type B connector (J33) provides the connection between the
DEMO9S08AC60E and your host PC.
The integrated debugger provides the DEMO9S08AC60E with power
eliminating the need to power the board externally. Power is derived from the
USB bus, therefore total current consumption should not exceed 500mA.
Excessive current drain will violate the USB spec and damage to your Host
PC’s USB hub or the DEMO9S08AC60E could occur.
1.8.2 BDM Header
J32 is the stand alone BDM header. Use of this port requires the user to solder
a 2 x 6 100 mil center header on the board. The pinout is as follows:
Table 1-2 BDM Connector (J32) Pinout
BKGD 1 2 GND
NC 3 4 RESET_B
NC 5 6 VDD
1.8.3 Socketed MCU
The MC9S08AC60 silicon is socketed on the DEMO9S08AC60E board. This
socket is an open top, spring actuated, 0.8mm pitch socket. It is made by Wells
Electronics, part number 7314-064-0-08. Before connecting power to the demo
board the silicon should be installed in this socket. Using your thumb and index
finger, press down on the socket until it is fully actuated. Place the silicon in the
socket with a vacuum pen or other chip lifting device. Pin 1 of the silicon
(denoted by an indented dot) should be in the bottom left hand corner, towards
the USB connector J33. Release the socket. The MC9S08AC60 silicon should
be centered within the socket and firmly held in place.

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1.9 Power
The DEMO9S08AC60E allows the user to power the board in several different
ways.
1.9.1 USB-BDM Interface
The default power option is to power the board through the integrated
USB-BDM interface. To power the board in this manner, simply connect the
supplied USB cable from the USB connector on the DEMO9S08AC60E (J33)
to a USB port on your host computer. LED D1 will light green to let you know
that power has been correctly applied to the board. When powering the board
through the USB-BDM interface, jumpers W1, W2, and W3 should be in their
default position as described below
Table 1-3 Jumper Settings in USB Power Mode
Jumper Default
Position Setting Description
W1 2-3 5V Sets the board for 5V
operation
W2 2-3 USB Sets the board to be powered by through the
USB
W3 1-2 P_IO_5V
Outputs 5V on pin 1 of
the I/O connector, J35.
This jumper should be
removed if you do not
want to output 5V on
this pin.
1.9.2 External Power Jack
The DEMO9S08AC60E can also be powered externally through the barrel
connector J1. This connector is a 2.1 mm, center positive connector. Voltage
supplied through this connector should be between positive 7 volts and positive
12 volts DC. To power the board through the external power jack, jumper W2
should be moved to the 1-2, EXT position. LED D1 will light green to let you
know that power has been correctly applied to the board. Jumper settings are
detailed below

Table 1-4 Jumper Settings in EXT Power Mode
Jumper Default
Position Setting Description
W1 2-3 5V Sets the board for 5V
operation
W2 1-2 EXT Sets the board to be powered externally
through J1
W3 1-2 P_IO_5V
Outputs 5V on pin 1 of
the I/O connector, J35.
This jumper should be
removed if you do not
want to output 5V on
this pin.
DEMO9S08AC60E User’s Guide, Rev. 0.1
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1.9.3 I/O Connector
TheDEMO9S08AC60E canalsobe poweredthrough pin1 ofthe I/O connector
J35. To power the board in this manner the jumper on W2 should be removed
and positive 5V DC should be applied on pin 1 of J35. This voltage input is not
regulated on the board so care should be taken to provide a clean 5V signal.
LED D1 will light green to let you know that power has been correctly applied
to the board. Jumper settings are detailed below
Table 1-5 Jumper Settings in I/O Connector Power Mode
Jumper Default
Position Setting Description
W1 2-3 5V Sets the board for 5V
operation
W2 Removed Removes USB and
EXT power options
W3 1-2 P_IO_5V Inputs 5V on pin 1 of
the I/O connector, J35

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1.9.4 3 Volt Operation
The DEMO9S08AC60E can be run with VDD set to either 5 volts or 3 volts. To
run the board at 3V when using any of the three power options, move jumper
W1 to the 1-2, 3V position.
1.10 Reset Switch
The reset switch (SW6) provides a way to apply a reset to the MCU. The reset
switch is connected directly to the RESET_B signal of the MCU. A 10K pull up
resistor to VDD on the RESET_B signal allows for normal operation. When the
reset switch is pressed the RESET_B signal is grounded and the MCU
recognizes a reset.
1.11 Clock Source
An on-board 4MHz crystal (Y1) is connected between the XTAL and EXTAL
pins of the MCU. There is also an option for the user to add a canned oscillator
to the board. To add an oscillator, the zero ohm resistors R18 and R20 should
be removed and an oscillator should be installed in the J2 footprint. This
footprint accepts either 14 pin or 8 pin oscillators. To go back to the crystal
option, the oscillator should be removed from J2 and zero ohm resistors should
be reinstalled in the R18 and R20 footprints.
1.12 RS-232
An RS-232 translator provides RS-232 communication on com connector J34.
This connector is a 9 pin Dsub right angle connector. TXD and RXD signals are
routed from the MCU to the RS-232 transceiver.
Table 1-6 RS-232 Connections
MCU Port Jumper COM Signal I/O Port Connector
PTE0/TXD1 J14 TXD OUT J34-2
PTE1/RXD1 J15 RXD IN J34-3
To disconnect port pins PTE0 and PTE1 from the RS-232 translator, remove
jumpers J14 and J15. The full pinout of the COM connector (J34) is listed below

Table 1-7 COM Connector (J34) Pinout
Pin Signal Name
1Connected to pins 4 and 6 through
zero ohm resistors R55 and R56
2TXD
3RXD
4Connected to pins 1 and 6 through
zero ohm resistors R55 and R56
5GND
6Connected to pins 1 and 4 through
zero ohm resistors R55 and R56
7NC
8NC
9NC
DEMO9S08AC60E User’s Guide, Rev. 0.1
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1.13 User Options
TheDEMO9S08AC60E includesvarioususer input and output devices to assist
in application development and silicon evaluation. These devices include four
pushbutton switches, a 10 LED light bar, 8 rocker switches, an accelerometer,
a light sensor, and a potentiometer.
1.13.1 Pushbutton Switches
Four pushbutton switches provide momentary active low input for user
applications. MCU port pins can be disconnected from these pushbutton

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switches by removing the appropriate jumper. The table below describes the
pushbutton switch connections
Table 1-8 Pushbutton Switch (SW1 - SW4) Connections
Switch MCU Port Jumper
SW1 PTC2 J12
SW2 PTC6 J13
SW3 PTD3 J11
SW4 PTD2 J10
1.13.2 Light Bar
A 10 red LED light bar (LED1) is provided to assist users during code
development. The LEDs are active low and are illuminated when a logic low
signal is driven from the MCU port pin. Eight of the LEDs on the light bar are
connected to port F. The other two are spare and are user assignable. They are
connected to test pads on the board that a user can solder to a desired port pin
or other signal. Port F pins can be disconnected from the light bar by removing
the appropriate jumper. The light bar is connected as described below
Table 1-9 Light Bar (LED1) Connections
LED MCU Port Jumper
LED0 PTF0 J16
LED1 PTF1 J17
LED2 PTF2 J18
LED3 PTF3 J19
LED4 PTF4 J20
LED5 PTF5 J21
LED6 PTF6 J22
LED7 PTF7 J23
LED8 NC JP4
LED9 NC JP5

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1.13.3 Rocker Switches
Eight rocker switches (SW5) are provided for user application development.
These switches are active low and input a logic low when set to the closed
position. There are no external pullups on these switches so the internal pullups
should be enabled on the MCU port pins to ensure proper operation. Port A pins
can be disconnected from the rocker switches by removing the appropriate
jumper. The rocker switches are connected as described below
Table 1-10 Rocker Switch (SW5) Connections
Switch MCU Port Jumper
1PTA0 J24
2PTA1 J25
3PTA2 J26
4PTA3 J27
5PTA4 J28
6PTA5 J29
7PTA6 J30
8PTA7 J31
1.13.4 Accelerometer
A Freescale MMA6270QT accelerometer (U5) is provided to assist users in
developing accelerometer based application code. The MMA6270QT provides
output data in the X and Y direction and has a sleep mode. The MMA6270QT
is a 3.3V part and is connected to the MC9S08AC60 through the use of a level
translator. The X and Y outputs are connected back to the MCU both directly
from the accelerometer (3.3V signals) and amplified to 5V through the use of
op-amps. The sleep mode is an active low input to the accelerometer. When a
logic low is applied to the sleepmode pin the device outputs are turned off,
providing significant reduction of operating current (low to 3 uA typically). The
MCU port pins can be disconnected from the accelerometer by removing the
appropriate jumper. The accelerometer is connected as described below

Table 1-11 Accelerometer (U5) Connections
Accelerometer
Function MCU Port Jumper
Sleep Mode PTC4 J5
Amplified Y Output PTD4 J6
Amplified X Output PTD5 J7
Raw Y Output PTD6 J8
Raw X Output PTD7 J9
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1.13.5 Light Sensor
A photo detect IC (U4) combines a photodiode and a current amplifier on a
single IC to provide variable current. The light sensor is connected to the MCU
on PTD1. PTD1 can be disconnected from the light sensor by removing jumper
J4.
1.13.6 Potentiometer
A 10 Kohm thumb-wheel potentiometer (VR1) provides variable resistor for
users to assist them in application development. The potentiometer is connected
to the MCU on PTD0. PTD0 can be disconnected from the potentiometer by
removing jumper J3. The voltage seen on PTD0 is the result of a voltage divider
that changes as the potentiometer is turned.
1.13.7 I/O Connector
A 40-pin I/O connector (J35) is available for user expansion. This connector is
located on the bottom of the board and has holes so that pins of a connecting