Computer Hardware User Manual

General Description
Features
MC68HC05RC16 — Rev. 3.0 General Release Specification
MOTOROLA General Description 17
• Low-Power Reset Pin
• 20 Bidirectional I/O Lines (Four Additional I/O Lines Available for
Bond Out in 44-Lead PLCC Package)
• Mask Programmable Pullups and Interrupts on Eight Port Pins
(PB0–PB7)
• High-Current Infrared (IR) Drive Pin
• High-Current Port Pin (PC0)
• Power-Saving Stop and Wait Modes
• Mask Selectable Options:
– COP Watchdog Timer
– STOP Instruction Disable
– Edge-Sensitive or Edge- and Level-Sensitive Interrupt Trigger
– Port B Pullups for Keyscan
• Illegal Address Reset
• ROM Security Feature
NOTE: A line over a signal name indicates an active low signal. For example,
RESET is active low.