HD64F38602R Datasheet, PDF (168/552 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

Section 8 I/O Ports
• P92/SSO (/IRQ0) pin
Register Name
PFCR
PCR9 Pin Function
Bit Name
IRQ0S1 and
IRQ0S0
SSUS
PCR92
Setting
Other than
x
B'01
0
P92 input pin
1
P92 output pin
0
x
SSO I/O pin
B'01
1
x
SSCK I/O pin
x
x
IRQ0 input pin
[Legend] x: Don't care.
Note: When this pin is used as the SSO/SSCK pin, register settings of the SSU are required. For
details, see section 15.4.4, Communication Modes and Pin Functions, and appendix B.3,
Port 9 Related Register Settings and Pin Functions.
• P91/SSCK/SDA pin
Register Name
PFCR
PCR9
Pin Function
Bit Name
SSUS
PCR91
Setting
x
0
P91 input pin
1
P91 output pin
0
x
SSCK I/O pin
1
x
SSO I/O pin
x
x
SDA I/O pin
[Legend] x: Don't care.
Note:
When this pin is used as the SSO/SSCK pin, register settings of the SSU are required. For
details, see section 15.4.4, Communication Modes and Pin Functions, and appendix B.3,
Port 9 Related Register Settings and Pin Functions. When this pin is used as the SDA pin,
register settings of the IIC2 are required. For details, see section 16.3.1, I²C Bus Control
Register 1 (ICCR1).
Note that the priority when pin functions conflict is SSU pin > IIC2 pin > P91.
Rev. 3.00 May 15, 2007 Page 136 of 516
REJ09B0152-0300