Freescale Semiconductor, Inc.
GENERAL RELEASE SPECIFICATION
•
Edge-Sensitive or Edge- and Level-Sensitive Interrupt Trigger Mask
Option
•
•
Simple Serial Input/Output Port
Mask Option Selectable Watchdog Timer (COP)
1.2
Mask Options
There are 13 mask options on the MC68HC05P4A:
•
•
•
•
•
•
CLOCK (RC or Crystal)
IRQ (Edge-Sensitive Only or Edge- and Level-Sensitive)
SIOP (MSB or LSB First)
COP Watchdog Timer (Enable/Disable)
Keyscan Pullups and Interrupts on Port A (Enable/Disable by Pin).
Stop Instruction (Option to Convert to Halt)
All mask options and the user ROM are programmed on the 01 layer in
fabrication.
NOTE
Negative true signals like RESET and IRQ will be denoted with an
overline.
1-2
Rev. 2.0
For More Information On This Product,
Go to: www.freescale.com
FREESCALE [ Freescale ]
