Pin Functions - Renesas F-ZTAT H8 Series Hardware Manual

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 to P3 The pin function depends on the corresponding bit in PCR3.
7 3
PCR3
Pin function
Note:
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.3.00 Jul. 19, 2007 page 192 of 532
REJ09B0397-0300
n
n = 7 to 3
0
2
P3 input pin
2
0
1
P3 input pin
1
in PCR3.
0
0
0
P3 input
0
pin
0
P3 input pin
n
0
1
P3 output pin
2
0
1
P3 output pin
1
0
*
1
P3 output
0
pin
1
P3 output pin
n
in PCR3.
2
1
*
SO output pin
1
in PCR3.
1
1
*
SI input pin
1
1
0
*
SCK output SCK
1 1
pin pin
1
*
input