HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 213

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Note:* When this pin is used as the SDA1 I/O pin, bits CKE1 and CKE0 in SCR of SCI_2 and bit
Note:* When this pin is used as the TMO0 output pin, bit RE in SCR of SCI_2 must be cleared to
ICE
CKE1
C/$
CKE0
P42DDR
Pin Function
OS3 to OS0
RE
P41DDR
Pin Function
P42/TMRI0/SCK2/SDA1
The pin function is switched as shown below according to the combination of the ICE bit in
ICCR of IIC1, the CKE1 and CKE0 bits in SCR of SCI_2, the C/$ bit in SMR of SCI_2, and
the P42DDR bit.
P41/TMO0/RxD2/IrRxD
The pin function is switched as shown below according to the combination of the OS3 to OS0
bits in TCSR of TMR0, the RE bit in SCR of SCI_2 and the P41DDR bit.
C/$ in SMR of SCI_2 must all be cleared to 0. SDA1 is an NMOS-only output, and has
direct bus drive capability.
When bits CCLR1 and CCLR0 in TCR0 of TMR_0 are set to 1, this pin is used as the
TMRI0 input pin.
When the P42 output pin and SCK2 output pin are set, the output type is NMOS push-pull
output.
0.
P42 input
pin
0
input pin
0
P41
P42 output
0
pin
1
0
0
0
SCK2 output
output pin
pin
TMRI0 input pin*
—
P41
0
1
All 0
1
SCK2 output
pin
—
—
1
RxD2/IrRxD
input pin
Rev. 2.0, 08/02, page 173 of 788
—
1
SCK2 input
pin
—
—
—
1
output pin
I/O pin
Not all 0
SDA1
TMO0
—
1
0
0
0
—
0