139
8.4.4
Pin States
Table 8.10 shows the port 5 pin states in each operating mode.
Table 8.10
Port 5 Pin States
Pins
Reset
Sleep
Subsleep Standby
Watch
Subactive Active
P5
7
/
WKP
7
to P5
0
/
WKP
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.
8.4.5
MOS Input Pull-Up
Port 5 has a built-in MOS input pull-up function that can be controlled by software. When a PCR5
bit is cleared to 0, setting the corresponding PUCR5 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.
PCR5
n
0
1
PUCR5
n
0
1
*
MOS input pull-up
Off
On
Off
Note:
*
Don’t care
(n = 7 to 0)