SH7729R Datasheet, PDF (701/855 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

Table 20.24 Read/Write Operation of the SC Port Data Register (SCPDR)
SCPnMD1
0
1
SCPnMD0
0
1
0
1
Pin State
Other function
(See table 19.1)
Output
Input (Pull-up
MOS on)
Input (Pull-up
MOS off)
Read
SCPDR value
SCPDR value
Pin state
Pin state
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
(n = 0 to 6)
SCPnMD1 SCPnMD0 Pin State
Read
0
0
Other function Low level
(See table 19.1)
1
Output
Low level
1
0
Input (Pull-up Pin state
MOS on)
1
Input (Pull-up Pin state
MOS off)
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 = 7)
Rev. 5.0, 09/03, page 655 of 806