Lucent Technologies MN10285K - Manual (Page 264)

I/O Ports
I/O Port Circuit Diagrams
MN102H75K/F75K/85K/F85K LSI User Manual Panasonic Semiconductor Development Company
263
Panasonic
Figure 11-12 P57/SBT0 (Port 5)
P5PUP7
0: Pullup off
1: Pullup on
0: P57
1: SBT0
P5OUT7
P5IN7
SBT0 input
0: Port low outut
1: Port high output
Pin
P5MD7
P5DIR7
0: Port input
1: Port output
0: Push-pull
1: Open-drain
(For I
2 C mode)
(PCNT0) bit 12
ODASCI0
Schmidt trigger
SBT0 output