HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 281

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

8.6.3
Port 5 pins also function as SCI I/O pins (TxD2, RxD2, and SCK2). Port 5 pin functions are
shown in table 8.10.
Table 8.10 Port 5 Pin Functions
Pin
P5
P5
P5
P5
3
2
1
0
/SCK2
/RxD2
/TxD2
Pin Functions
Selection Method and Pin Functions
The pin function is switched as shown below according to bit P53DDR.
The pin function is switched as shown below according to the combination of
bit C/A in the SCI2 SMR, bits CKE0 and CKE1 in SCR, and bit P52DDR.
The pin function is switched as shown below according to the combination of
bit RE in the SCI2 SCR, and bit P51DDR.
The pin function is switched as shown below according to the combination of
bit TE in the SCI2 SCR, and bit P50DDR.
P53DDR
Pin function
CKE1
C/A
CKE0
P52DDR
Pin function
RE
P51DDR
Pin function
TE
P50DDR
Pin function
input pin
P5
P5
P5
0
1
0
2
input pin
input pin
P5
0
0
0
3
input pin
output pin
0
P5
0
1
2
0
0
Rev.3.00 Mar. 26, 2007 Page 239 of 772
P5
P5
0
output pin
1
0
SCK2
output pin
output pin
—
1
1
1
output pin
P5
SCK2
Section 8 I/O Ports
3
—
—
1
REJ09B0355-0300
output pin
TxD2 output pin
RxD2 input pin
1
—
—
1
1
input pin
SCK2
—
—
—
1