Toshiba H1 Series Data Book page 139

(2) PC1 (INT1, TA0IN), PC3 (INT3, TA2IN)
Reset
Direction control
PCCR write
Function control
PCFCwrite
S
Output latch
PCwrite
PC read
INT1
INT3
TA0IN
TA2IN
S
B
Selector
A
Level/edge selection
and
Rising/Falling selection
IIMC<I1LE, I1EDGE>
<I3LE, I3EDGE>
Figure 3.7.21 Port C1,C3
92CZ26A-136
TMP92CZ26A
PC1 (INT1,TA0IN)
PC3 (INT3, TA2IN)