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A.
I/O Port States in Each Pin State
MCU
Operating
Port Name
Mode
Port 1
7
Port 3
7
Port 4
7
Port 7
7
Port 9
7
Port A
7
Port B
7
Port C
7
Port D
7
PF7
7
PF6
7
PF5
PF4
PF3
PF2
PF1
PF0
HTxD
7
HRxD
7
Legend:
H: High level
T: High impedance
Keep: Input port becomes high-impedance, output port retains state
Appendix
Hardware
Standby
Reset
Mode
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
H
T
Input
T
Program
Software
Execution
Standby
State Sleep
Mode
Mode
Keep
I/O port
Keep
I/O port
T
Input port
Keep
I/O port
T
Input port
Keep
I/O port
Keep
I/O port
Keep
I/O port
Keep
I/O port
[DDR = 0]
[DDR = 0]
T
T
[DDR = 1]
[DDR = 1]
H
Clock output
Keep
I/O port
H
Output
T
Input
Rev. 1.0, 09/02, page 563 of 568
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