TWR-S08PT60 Freescale Semiconductor, TWR-S08PT60 Datasheet - Page 5

• Manufacturer Part Number: TWR-S08PT60
• Description: Development Boards & Kits - S08 / S12 S08PT60Tower MCU mod
• Manufacturer: Freescale Semiconductor

Specifications of TWR-S08PT60

• Rohs: yes
• Product: Development Tools
• Tool Is For Evaluation Of: MC9S08PT60
• Core: S08
• Interface Type: RS-232, USB
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 bit
• Description/function: The TWR-S08PT60 is a development tool for the MC9S08PT60 rugged 5V 8-bit MCUs and is designed to highlight the touch sensing and motor control capabilities of the MCU
• For Use With: Freescale Tower System

3 Hardware Features
This section provides more details about the features and functionality of the TWR‐S08PT60.
3.1
3.2
An 8MHz external crystal is used for the external clock source of the PT60. The clock signal can be
isolated when the EXTAL and XTAL pin are used for the other purpose (GPIO, IIC).
The TWR‐S08PT60 can be powered by the OSBDM circuit Mini‐B USB connector when running in
stand‐alone mode. When assembled with the Tower System, the TWR‐S08PT60 is powered by the
Tower System Elevators and the mini‐B USB connector is no longer used as a power source and
only used for OSBDM debugging purposes. In addition, the TWR‐S08PT60 can also be powered by
the TWRPI interface which enables the motor control board APMOTOR56F800E to power the
TWR‐S08PT60. In this case, J27 pin 1 and 2 must be shorted to allow 3.3V from the motor control
board to power the system.
When working in standalone mode, short pin 2 and 3 on both J25 and J26 jumper blocks as the
default jumper setting. When working with the Tower System, short pin 1 and 2 on both J25 and
J26 jumper blocks:
Clocking
System Power
HDR TH 1X3
HDR TH 1X3
J18
J17
1
2
3
1
2
3
PTB6/SDA/XTAL
PTB7/SCL/EXTAL
MCU_XTAL_SDA
8MHz_XTAL_CLK
MCU_EXTAL_SCL
8MHz_EXTAL_CLK
PB6
PB7
{8}
{8}
TWR‐S08PT60 User Manual
Figure 2. clock circuit
R22
R20
0
0
8MHz_EXTAL
8MHz_XTAL
1.0M
R21
8MHz
Y2
C7
C6
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18PF
18PF