HD64336900G Datasheet, PDF (145/408 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

• P20/SCK3 pin
Register SCR3
Bit Name CKE1
Setting value 0
0
0
1
[Legend]
X: Don't care
CKE0
0
0
1
X
SMR
COM
0
1
X
X
PCR2
PCR20
0
1
X
X
X
Pin Function
P20 input pin
P20 output pin
SCK3 output pin
SCK3 output pin
SCK3 input pin
9.3 Port 5
Port 5 is a general I/O port also functioning as an I²C bus interface I/O pin*, A/D trigger input pin,
and wakeup interrupt input pin. Each pin of the port 5 is shown in figure 9.3. The register setting
of the I²C bus interface has priority for functions of the P57/SCL and P56/SDA pins.
Note: * Supported only by the H8/36912 Group.
Port 5
P57/SCL
P56/SDA
P55/
/
Figure 9.3 Port 5 Pin Configuration
Port 5 has the following registers.
• Port mode register 5 (PMR5)
• Port control register 5 (PCR5)
• Port data register 5 (PDR5)
• Port pull-up control register 5 (PUCR5)
Rev. 1.00, 11/03, page 117 of 376