Designer Reference Manual
USB08 Evaluation Board
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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)
•
2
×
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
