Hitachi SH7709S Hardware Manual page 634

Table 19.24 Read/Write Operation of the SC Port Data Register (SCPDR)
SCPnMD1 SCPnMD0
0 0
1
1 0
1
SCPnMD1 SCPnMD0
0 0
1
1 0
1
Pin State Read
Other function SCPDR value
(See table 18.1)
Output SCPDR value
Input (Pull-up Pin state
MOS on)
Input (Pull-up Pin state
MOS off)
Pin State Read
Other function Low level
(See table 18.1)
Output Low level
Input (Pull-up Pin state
MOS on)
Input (Pull-up Pin state
MOS off)
Write
Value is written to SCPDR, but does
not affect pin state.
Write value is output from pin.
Value is written to SCPDR, but does
not affect pin state.
Value is written to SCPDR, but does
not affect pin state.
Write
Ignored (no effect on pin state)
Ignored (no effect on pin state)
Ignored (no effect on pin state)
Ignored (no effect on pin state)
(n = 0 to 6)
(n = 7)
615