MC68HC05P18A Datasheet, PDF (61/130 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Input/Output (I/O) Ports
I/O Port Programming
Table 7-4. Port D I/O Pin Functions
DDRD I/O Pin Mode
Access
to DDRD @ $0007
Read/Write
Access
to Data Register @ $0003
Read
Write
0
In, Hi-Z
DDRD5
I/O pin
See note
1
Out
DDRD5
PD5/CKOUT PD5/CKOUT
Note: Does not affect input, but stored to data register
PD7 is input only.
NOTE:
To avoid generating a glitch on an I/O port pin, data should be written to
the I/O port data register before writing a logical 1 to the corresponding
data direction register.
MC68HC05P18A
Input/Output (I/O) Ports
For More Information On This Product,
Go to: www.freescale.com
Technical Data