142
8.5.3
Pin Functions
Table 8.12 shows the port 6 pin functions.
Table 8.12
Port 6 Pin Functions
Pin
Pin Functions and Selection Method
P6
7
to P6
0
The pin function depends on bit PCR6
n
in PCR6.
(n = 7 to 0)
PCR6
n
0
1
Pin function
P6
n
input pin
P6
n
output pin
8.5.4
Pin States
Table 8.13 shows the port 6 pin states in each operating mode.
Table 8.13
Port 6 Pin States
Pins
Reset
Sleep
Subsleep Standby
Watch
Subactive Active
P6
7
to P6
0
High-
impedance
Retains
previous
state
Retains
previous
state
High-
impedance
*
Retains
previous
state
Functional
Functional
Note:
*
A high-level signal is output when the MOS pull-up is in the on state.
8.5.5
MOS Input Pull-Up
Port 6 has a built-in MOS input pull-up function that can be controlled by software. When a PCR6
bit is cleared to 0, setting the corresponding PUCR6 bit to 1 turns on the MOS pull-up for that pin.
The MOS pull-up function is in the off state after a reset.
PCR6
n
0
1
PUC6
n
0
1
*
MOS input pull-up
Off
On
Off
Note:
*
Don’t care
(n = 7 to 0)