h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 307

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Note: 1. Available when using I
Pin
P33/TxD1/
SCL1 *
P32/SCK0/
SDA1 *
P31/RxD0/
IrRxD
P30/TxD0/
IrTxD
1
1
/
I R Q 4
and H8S/2630 only). In W mask-ROM versions, the output format is NMOS push-pull.
However, it becomes NMOS open drain output when P34ODR = 1 and P35ODR = 1.
Selection Method and Pin Functions
Switches as follows according to combinations of ICCR1 ICE bit *
SCR1 and bit P33DDR. The SCL1 output format is NMOS open drain output,
enabling direct bus driving.
Note: * When P33ODR = 1, it becomes NMOS open drain output.
Switches as follows according to combinations of ICCR1 ICE bit *
SMR0, bits CKE0 and CKE1 of SCR0, and bit P32DDR. When used as a SDA1 I/O
pin, always be sure to clear the following bits to 0: SMR0 C/
CKE1 bits.
The SDA1 output format is NMOS open drain output, enabling direct bus driving.
Note: * When P32ODR = 1, it becomes NMOS open drain output.
Switches as follows according to combinations of bit RE of SCR0 and bit P31DDR.
Note: * When P31ODR = 1, it becomes NMOS open drain output.
Switches as follows according to combinations of bit TE of SCR0 and bit P30DDR.
Note: * When P30ODR = 1, it becomes NMOS open drain output.
ICE *
TE
P33DDR
Pin function
ICE *
CKE1
C/
CKE0
P32DDR
Pin function
RE
P31DDR
Pin function
TE
P30DDR
Pin function
A
1
1
2
input
C bus interface (the W-mask version of the H8S/2638, H8S/2639,
P32
P33 input
P31 input
P30 input
0
0
0
0
0
output
P32
0
0
1
0
0
P33 output *
P31 output *
P30 output *
0
0
output *
1
SCK0
1
1
Rev. 6.00 Feb 22, 2005 page 247 of 1484
—
0
1
I R Q 4
input
TxD1 output *
output *
SCK0
—
—
1
—
1
A
TxD0 output *
RxD0 input
bit, SCR0 CKE0 and
SCK0
Section 9 I/O Ports
input
1
1
REJ09B0103-0600
—
—
—
—
—
1
of IIC1, bit TE of
of IIC1, bit C/
1
1
SCL1 I/O
—
—
1
SDA1
I/O
—
1
0
0
0
A
of