r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 627

• Manufacturer Part Number: r4f2426
• Description: 16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
• Manufacturer: Renesas Electronics Corporation.

• PA1/A17/TxD4-B
Operating
mode
EXPE
A17E
TE
PA1DDR
Pin function
Note:
• PA0/A16
Operating mode
EXPE
A16E
PA0DDR
Pin function
The pin function is switched as shown below according to the combination of the operating
mode, bit EXPE, bit TE in SCR_4 of the SCI, bit A17E in PFCR1, bit TXD4S in PFCR4, and
bit PA1DDR.
The pin function is switched as shown below according to the combination of the operating
mode, bit EXPE, bit A16E in PFCR1, and bit PA0DDR.
*
output
TxD4-A output when the TXD4S bit in PFCR4 is 1.
A17
1, 2




output
A16
1, 2



input
PA1
0
0
input
output
PA0
PA1
0
1
0
0
TxD4-B
output*
output
PA0


1
4
1

4
input
PA1
input
0
PA0
0

1
output
1
A17
1
output
A16
1
input
PA1
0
input
0
PA0
output
0
PA1
1

0

0
Rev. 1.00 Sep. 19, 2008 Page 599 of 1270
output
TxD4-B
output*
PA0
1

1
input
PA1
input
PA0
0
0
7
0
output
7
0
PA1
1
output
0
PA0
1
Section 10 I/O Ports
TxD4-B
output*
REJ09B0466-0100
1

1
1
input
PA0
0
input
PA1
0
1

output
1
output
A16
A17
1
1