Pin Functions; Pin States - Renesas H8 Series Hardware Manual

8.8.3

Pin Functions

Table 8.21 shows the port 8 pin functions.
Table 8.21 Port 8 Pin Functions
Pin Pin Functions and Selection Method
P8 /SEG The pin function depends on bits PCR8
7 32
in LPCR.
to
P8 /SEG
0 25
P8 to P8
7
SGS3 to SGS0
PCR8
Pin function
P8 to P8
3
SGS3 to SGS0
PCR8
Pin function
8.8.4

Pin States

Table 8.22 shows the port 8 pin states in each operating mode.
Table 8.22 Port 8 Pin States
Pins Reset
P8 /SEG to High-
7 32
P8 /SEG impedance
0 25
4
Other than 1000, 1001, 1010, 1011, 1100,
0
n
P8 input pin
n
0
Other than 0111, 1000, 1001, 1010, 1011,
0
m
P8 input pin
m
Sleep Subsleep Standby
Retains Retains
previous previous
state state
to PCR8 in PCR8 and bits SGS3 to SGS0
7 0
1101, 1110, 1111
1
P8 output pin
n
1100, 1101, 1110
1
P8 output pin
m
Watch
High- Retains
impedance previous
state
Rev. 7.00 Mar 10, 2005 page 227 of 652
Section 8 I/O Ports
(n = 7 to 4)
1000, 1001, 1010,
1011, 1100, 1101,
1110, 1111
*
SEG output pin
n+25
(m = 3 to 0)
0111, 1000, 1001,
1010, 1011, 1100,
1101, 1110
*
SEG output pin
m+25
*: Don't care
Subactive Active
Functional Functional
REJ09B0042-0700