8.7.3
Pin Functions
Table 8-18 shows the port 6 pin functions.
Table 8-18 Port 6 Pin Functions
Pin
Pin Functions and Selection Method
P67/SEG16
to P60/SEG9
The pin function depends on bit PCR6n in PCR6 and bits SGS3 to SGS0 in
LPCR.
(n = 7 to 0)
011**, 1***
SGS3 to SGS0
PCR6n
00**, 010*
0
1
*
Pin function
P6n input pin
P6n output pin
SEGn+9 output pin
*: Don’t care
8.7.4
Pin States
Table 8-19 shows the port 6 pin states in each operating mode.
Table 8-19 Port 6 Pin States
Pins
Reset
Sleep
Subsleep Standby
Watch
Subactive Active
P67/SEG16 to
P60/SEG9
High-
Retains
Retains
previous
state
High-
Retains
Functional
Functional
impedance previous
state
impedance* previous
state
Note:
*
A high-level signal is output when the MOS pull-up is in the on state.
8.7.5
MOS Input Pull-Up
Port 6 has a built-in MOS 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.
PCR6n
0
0
1
PUCR6n
0
1
*
MOS input pull-up
Off
On
Off
(n = 7 to 0)
*: Don’t care
161
ETC [ ETC ]
