154
8.9.3
Pin Functions
Table 8.24 gives the port A pin functions.
Table 8.24
Port A Pin Functions
Pin
Pin Functions and Selection Method
PA
3
to PA
0
The pin function depends on bit PCRA
n
in PCRA.
(n = 3 to 0)
PCRA
n
0
1
Pin function
PA
n
input pin
PA
n
output pin
8.9.4
Pin States
Table 8.25 shows the port A pin states in each operating mode.
Table 8.25
Port A Pin States
Pins
Reset
Sleep
Subsleep Standby
Watch
Subactive Active
PA
3
to PA
0
High-
impedance
Retains
previous
state
Retains
previous
state
High-
impedance
Retains
previous
state
Functional
Functional