ST72F324BJ STMICROELECTRONICS [STMicroelectronics], ST72F324BJ Datasheet - Page 58

• Manufacturer Part Number: ST72F324BJ
• Description: 8-bit MCU, 3.8 to 5.5 V operating range with 8 to 32 Kbyte Flash/ROM, 10-bit ADC, 4 timers, SPI, SCI
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

I/O ports
9.5.1
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Table 30.
I/O port implementation
The I/O port register configurations are summarized
Table 31.
Table 32.
External interrupt on selected
external event
Port A
Port B
Port C
Port D
Port E
Port F
Reset value of all I/O port registers
Address (Hex.)
Port
000Ah
000Bh
0000h
0001h
0002h
0003h
0004h
0005h
0006h
0007h
0008h
0009h
Interrupt event
PA7:6
PA5:4
PA3
PB3
PB4, PB2:0
PC7:0
PD5:0
PE1:0
PF7:6, 4
PF2:0
Pin name
I/O port interrupt control/wake-up capability
Port configuration
I/O port register map and reset values
PADR
PADDR
PAOR
PBDR
PBDDR
PBOR
PCDR
PCDDR
PCOR
PDDR
PDDDR
PDOR
Register label
Floating
Floating
Floating
Floating
Floating
Floating
Floating
Floating
Floating
OR = 0
Event flag Enable Control bit Exit from WAIT Exit from HALT
Input (DDR = 0)
-
MSB
MSB
MSB
MSB
Floating
7
0
Floating interrupt
Floating interrupt
DDRx, ORx
6
0
OR = 1
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
Pull-up
5
0
Table
31.
4
0
Open drain
Open drain
Open drain
Open drain
Open drain
Open drain
Open drain
Open drain
Open drain
True open-drain (high sink)
OR = 0
Yes
3
0
Output (DDR = 1)
2
0
Push-pull
Push-pull
Push-pull
Push-pull
Push-pull
Push-pull
Push-pull
Push-pull
Push-pull
OR = 1
1
0
ST72324B
Yes
LSB
LSB
LSB
LSB
0
0