Lucent Technologies MN10285K - Manual (Page 259)

I/O Ports
I/O Port Circuit Diagrams
Panasonic Semiconductor Development Company MN102H75K/F75K/85K/F85K LSI User Manual
258
Panasonic
Figure 11-7 P24/TM4IC/SBT1 (Port 2)
P2PUP4
0: Pullup off
1: Pullup on
00: P24
01: SBT1
10: TM4IC
TM4IC input
SBT1 input
P2MD9
P2DIR4
0: Port input
1: Port output
P2OUT4
Pin
P2IN4
0: Port low output
1: Port high output
Schmidt trigger
ODASCI1
0: Push/pull
1: Open-drain (I
2 C mode)
SBT1 output
P2MD8
To use as SBT1,set P2MD8 and P2MD9 to 0.