Pull-Up Input Port; Table 31. Configuration Of Pc4; Table 32. Port Configuration - STMicroelectronics ST72361 Auto Series Manual

ST72361xx-Auto
8.4.3

Pull-up input port

Table 31.
The PC4 port cannot operate as a general purpose output. If DDR = 1 it is still possible to
read the port through the DR register.
Table 32.
Port
Port A
Port B
Port C
Configuration of PC4
Port configuration
Pin name
OR = 0
PA0
PA1
PA2
PA3
floating
PA4
PA5
PA6
PA7
PB0
PB1
PB2
floating
PB3
PB4
PB5
PC0
PC1
floating
PC2
PC3
PC4
PC7:5 floating
Doc ID 12468 Rev 3
Mode
pull-up input
Input
OR = 1
pull-up interrupt (ei0)
floating interrupt (ei0)
pull-up interrupt (ei0)
floating interrupt (ei0)
pull-up interrupt (ei0)
floating interrupt (ei0)
pull-up interrupt (ei0)
floating interrupt (ei0)
pull-up interrupt (ei1)
floating interrupt (ei1)
pull-up interrupt (ei1)
floating interrupt (ei1)
pull-up interrupt (ei1)
floating interrupt (ei1)
pull-up
pull-up interrupt (ei2)
floating interrupt (ei2)
pull-up
pull-up
pull-up
I/O ports
Output
OR = 0 OR = 1
open drain push-pull
open drain push-pull
open drain push-pull
open drain push-pull
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