ST72361 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST72361' PDF : 224 Pages View PDF
ST72361
I/O PORTS (Cont’d)
9.6 I/O PORT REGISTER CONFIGURATIONS
The I/O port register configurations are summa-
rized as follows.
9.6.1 Standard Ports
PB7:6, PC0, PC3, PC7:5, PD3:2, PD5, PE7:0,
PF7:0
MODE
floating input
pull-up input
open drain output
push-pull output
DDR OR
0
0
0
1
1
0
1
1
9.6.2 Interrupt Ports
PA0,2,4,6; PB0,2,4; PC1; PD0,6
(with pull-up)
MODE
floating input
pull-up interrupt input
open drain output
push-pull output
DDR OR
0
0
0
1
1
0
1
1
PA1,3,5,7; PB1,3,5; PC2; PD1,4,7
(without pull-up)
MODE
floating input
floating interrupt input
open drain output
push-pull output
DDR OR
0
0
0
1
1
0
1
1
9.6.3 Pull-up Input Port
PC4
MODE
pull-up input
The PC4 port cannot operate as a general pur-
pose output. If DDR = 1 it is still possible to read
the port through the DR register.
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