Universal Serial Bus Designer Reference Manual

Hardware Description
Technical Data
USB08 Evaluation Board Designer Reference Manual
MOTOROLA Hardware Description 29
2.3.2 USB08 Evaluation Board
Features of the USB08 evaluation board include:
• M68HC908JB8 MCU packaged in a 28-pin small-outline
integrated circuit package (SOIC)
• Three light-emitting diodes (LED)
• Three input keys
• Three analog sensors:
– Light
– Temperature
– Angle of rotation
• Current supplied alternatively via USB connection or on-board
voltage regulator
• Monitor mode interface for in-system programming and debugging
• Additional RS232 interface for connection to PC or serial liquid
crystal display (LCD)
• Push buttons for reset and IRQ
• Jumper for power-on reset (POR)
• All MCU pins are accessible via a 26-pin universal expansion
connector
• Small user breadboard area reserved for customer circuit
extensions
The USB08 evaluation board is shown in Figure 2-1.