Pin Functions; Pin States; Table 8.30 Port A Pin Functions; Table 8.31 Port A Pin States - Renesas H8/3847R Series Hardware Manual

Section 8 I/O Ports
8.11.3

Pin Functions

Table 8.30 shows the port A pin functions.

Table 8.30 Port A Pin Functions

Pin Pin Functions and Selection Method
PA /COM The pin function depends on bit PCRA
3 4
SGS3 to SGS0
PA /COM The pin function depends on bit PCRA
2 3
SGS3 to SGS0
PA /COM The pin function depends on bit PCRA
1 2
SGS3 to SGS0
PA /COM The pin function depends on bit PCRA
0 1
SGS3 to SGS0
8.11.4

Pin States

Table 8.31 shows the port A pin states in each operating mode.

Table 8.31 Port A Pin States

Pins Reset
PA /COM High-
3 4
PA /COM impedance
2 3
PA /COM
1 2
PA /COM
0 1
Rev. 6.00 Aug 04, 2006 page 250 of 680
REJ09B0145-0600
PCRA
3
Pin function PA
PCRA
2
Pin function PA
PCRA
1
Pin function PA
PCRA
0
Pin function PA
Sleep Subsleep
Retains Retains
previous previous
state state
in PCRA and bits SGS3 to SGS0.
3
0000
1
0
input pin PA output pin
3 3
in PCRA and bits SGS3 to SGS0.
2
0000
1
0
input pin PA output pin
2 2
in PCRA and bits SGS3 to SGS0.
1
0000
1
0
input pin PA output pin
1 1
in PCRA and bits SGS3 to SGS0.
0
0000
1
0
input pin PA output pin
0 0
Standby Watch
High- Retains
impedance previous
state
Not 0000
*
COM output pin
4
Not 0000
*
COM output pin
3
Not 0000
*
COM output pin
2
Not 0000
*
COM output pin
1
*: Don't care
Subactive Active
Functional Functional