Pin Functions - Renesas H8 Series Hardware Manual

Section 8 I/O Ports
8.4.3

Pin Functions

Table 8.9 shows the port 3 pin functions.
Table 8.9 Port 3 Pin Functions
Pin Pin Functions and Selection Method
P3 /SO The pin function depends on bit SO1 in PMR3 and bit PCR3
2 1
SO1
PCR3
Pin function
P3 /SI The pin function depends on bit SI1 in PMR3 and bit PCR3
1 1
SI1
PCR3
Pin function
P3 /SCK The pin function depends on bit SCK1 in PMR3, bit CKS3 in SCR1, and bit
0 1
PCR3
SCK1
CKS3
PCR3
Pin function
Legend: * Don't care
Rev. 6.00 Sep 12, 2006 page 184 of 526
REJ09B0326-0600
0
2
P3 input pin P3
2
0
1
P3 input pin P3
1
in PCR3.
0
0
0
P3 input pin P3
0
0
1
output pin
2
0
1
output pin
1
0
*
1
output pin SCK
0
in PCR3.
2
1
*
SO output pin
1
in PCR3.
1
1
*
SI input pin
1
1
0 1
* *
output SCK input pin
1 1
pin