151
8.8.3
Pin Functions
Table 8.21 gives the port 9 pin functions.
Table 8.21
Port 9 Pin Functions
Pin
Pin Functions and Selection Method
P9
7
to P9
0
The pin function depends on bit PCR9
n
in PCR9.
(n = 7 to 0)
PCR9
n
0
1
Pin function
P9
n
input pin
P9
n
output pin
8.8.4
Pin States
Table 8.22 shows the port 9 pin states in each operating mode.
Table 8.22
Port 9 Pin States
Pins
Reset
Sleep
Subsleep Standby
Watch
Subactive Active
P9
7
to P9
0
High-
impedance
Retains
previous
state
Retains
previous
state
High-
impedance
Retains
previous
state
Functional
Functional