Freescale Semiconductor, Inc.
GENERAL RELEASE SPECIFICATION
Table 1-1. I/O Pin Functions
R/W
DDR
I/O Pin Function
0
0
1
1
0
1
0
1
The I/O pin is in input mode. Data is written into the output data latch.
Data is written into the output data latch and output to the I/O pin.
The state of the I/O pin is read.
The I/O pin is in an output mode. The output data latch is read.
R/W is an internal signal.
Data Direction
Register Bit
Internal
HC05
I/O
Pin
Latched Output
Data Bit
Output
Connections
Input
Reg
Bit
Input
I/O
Rev. 2.0
1-7
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