Motorola USB08 User Manual

Page of 244
Designer Reference Manual
USB08 Evaluation Board
28
Hardware Description
MOTOROLA
Hardware Description
Beyond that, the USB08 enables the implementation and testing of its 
own M68HC08 software for evaluation purposes. For that purpose, the 
board contains a monitor mode interface for reprogramming and 
debugging. The monitor mode interface of the USB08 is compatible with 
Motorola development tools such as the M68ICS08JB8 and other 
third-party tools.
2.3  Technical Data
This subsection provides technical data for both the MC68HC908JB8 
and the USB08 evaluation board.
2.3.1  MC68HC908JB8 Microcontroller
The main component of the USB08 evaluation board is the 
MC68HC908JB8, a Motorola 8-bit MCU. Features of the 
MC68HC908JB8 include:
Efficient M68HC08 MCU core
8 Kbytes of on-chip FLASH memory with security feature
256 bytes of random-access memory (RAM)
3-MHz bus clock (6-MHz quartz crystal)
×
 16-bit timer with:
Input capture
Output compare
Pulse-width modulator (PWM)
Low-speed USB 1.1 interface module
Integrated 3-V voltage regulator
Computer operating properly (COP) watchdog timer
Low-voltage interrupt (LVI) reset controller 
Inputs for RESET and IRQ pins
Up to 21 input/output (I/O) lines