r4f2426 Renesas Electronics Corporation., r4f2426 Datasheet - Page 581

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

• P34/SCK0/SCK4-A/SDA0
ICE
CKE1
C/A
CKE0
P34DDR
Pin function
Notes: 1. NMOS open-drain output when P34ODR = 1.
• P33/RxD1/SCL1
ICE
RE
P33DDR
Pin function
Notes: 1. NMOS open-drain output when P33ODR = 1.
The pin function is switched as shown below according to the combination of bit ICE in
ICCRA_0 of the I
SCI, and bit P34DDR.
The pin function is switched as shown below according to the combination of bit ICE in
ICCRA_1 of the I
2. NMOS open-drain output regardless of P34ODR.
3. Simultaneous output of SCK0 and SCK4 cannot be set.
4. SCK4-A input/output when the SCK4S bit in PFCR4 is 0.
2. NMOS open-drain output regardless of P33ODR.
input
P34
2
2
C, bit C/A in SMR_0 and bits CKE0 and CKE1 in SCR_0 and SCR_4 of the
C, bit RE in SCR_1 of the SCI, and bit P33DDR.
0
P33 input
0
0
output*
P34
1
0
1
0
SCK0/SCK4-A
output*
P33 output*
0

1
1
*
0
1
3
*
4
0
1
SCK0/SCK4-A
output*
Rev. 1.00 Sep. 19, 2008 Page 553 of 1270
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
1
1
RxD1 input
*
3
*
4

1
SCK0/SCK4-A
input*



1
Section 10 I/O Ports
4
REJ09B0466-0100
SCL1 I/O*


SDA0
1
I/O*




1
2
2