MC68HC705P9 Datasheet, PDF (22/160 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
General Description
• 128 bytes of user RAM
• Bootloader ROM
• Memory-mapped I/O registers
• Fully static operation with no minimum clock speed
• Power-saving stop, wait, and data-retention modes
• Available packages:
– 28-pin plastic dual in-line package (PDIP)
– 28-pin small outline integrated circuit (SOIC)
– 28-pin ceramic dual in-line package (CERDIP)
1.3 Programmable Options
The options in Table 1-1 are programmable in the mask option register.
Table 1-1. Programmable Options
Feature
COP watchdog
External interrupt pin triggering
SIOP data format
Option
Enabled
or
Disabled
Negative-edge triggering only
or
Negative-edge and low-level triggering
MSB first
or
LSB first
Technical Data
22
General Description
For More Information On This Product,
Go to: www.freescale.com
MC68HC705P9 — Rev. 4.0
MOTOROLA