Advertisement
Section 8 I/O Ports
• P67/ExIRQ8/SSCK
The pin function is switched as shown below according to the SCKS bit in SSCRH of the SSU
and the P67DDR bit. When the ISS8 bit in ISSR16 is set to 1, this pin can be used as the
ExIRQ8 input pin. To use as the ExIRQ8 input pin, clear the P67DDR bit to 0.
SCKS
P67DDR
Pin function
ExIRQ8 input pin
[Legend] X: Don't care.
• P66/ExIRQ9/SCS
The pin function is switched as shown below according to the CSS1 and CSS0 bits in SSCRH
of the SSU and the P66DDR bit. When the ISS9 bit in ISSR16 is set to 1, this pin can be used
as the ExIRQ9 input pin. To use as the ExIRQ9 input pin, clear the P66DDR bit to 0.
CSS1, CSS0
P66DDR
Pin function
ExIRQ9 input pin
[Legend] X: Don't care.
• P65/ExIRQ10/RTS
The pin function is switched as shown below according to the combination of the
enable/disable setting of the SCIF and the P65DDR bit.
When the ISS10 bit in ISSR16 is set to 1, this pin can be used as the ExIRQ10 input pin. To
use as the ExIRQ10 input pin, clear the P65DDR bit to 0.
SCIF
P65DDR
Pin function
[Legend] X: Don't care.
Rev. 1.00 Mar. 12, 2008 Page 222 of 1178
REJ09B0403-0100
0
0
P67 input pin
00
0
P66 input pin
Disabled
0
P65 input pin
IRQ10 input pin
1
P67 output pin
1
P66 output pin
1
P65 output pin
1
X
SSCK I/O pin
01 or 1X
X
SCS I/O pin
Enabled
X
RTS output pin
Advertisement
