Port1C I/O Setting (27H); Serial I/O0 Status Register (28H) - NEC PD17062 Datasheet

9.16 PORT1C I/O SETTING (27H)

b
3
0

9.17 SERIAL I/O0 STATUS REGISTER (28H)

28H
b b
3 2
SIO0SF8 SIO0SF9
82
27H
b b b
2 1 0
0 0 P1CGIO
P1C port I/O setting
0 P1C
1
1 P1C
1
b b
1 0
SBSTT SBBSY
Busy condition detection
0 Detects the stop condition
1 Detects the start condition
Start condition detection
0 Resets when the contents of the clock counter become 9
1 Detects the start condition
9 clock detection
0 Resets when the contents of the clock counter become 0 or 1
1 Sets when the contents of the clock counter become 9
8 clock detection
0 Resets when the contents of the clock counter become 0 or 1
1 Sets when the contents of the clock counter become 8
, P1C , P1C : input port
2 3
, P1C , P1C : output port
2 3
PD17062