Toshiba TLCS-900/H1 Series Manual page 112

3.7.9 Port C (PC0 to PC7)
PC0 to PC7 are 8-bit general-purpose I/O port. Each bit can be set individually for input
or output. Resetting sets Port C to an input port. It also sets all bits of the output latch
register to "1".
In addition to functioning as a general-purpose I/O port, Port C can also function as an
input pin for timers (TA0IN, TA2IN), input pin for external interruption (INT0 to INT3),
Extension address function (EA26, EA27, EA28) , output pin for SPI controller (SPDI,
SPDO and SPCLK) and output pin for Key (KO8). These settings are mode using the
function register PCFC. The edge select for external interruption is determined by the
IIMC register in the interruption controller.
(1) PC0 (INT0), PC2 (INT2)
Reset
Direction control
PCCR write
Function control
PCFC write
S
Output latch
PCwrite
Selector
PC read
INT0
INT2
Figure 3.7.20 Port C0, C2
92CF30-110
S
B
A
Level/edge selection
and
Rising/Falling selection
IIMC<I0LE, I0EDGE>
<I2LE, I2EDGE>
TMP92CF30
PC0 (INT0)
PC2(INT2)
2009-06-12