参数资料
型号: ST72324BLK4BA/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32
封装: 0.400 INCH, PLASTIC, SDIP-32
文件页数: 90/151页
文件大小: 1209K
代理商: ST72324BLK4BA/XXX
ST72F324L, ST72324BL
43/151
I/O PORTS (Cont’d)
9.5.1 I/O Port Implementation
The I/O port register configurations are summa-
rised as follows.
Standard Ports
PA5:4, PC7:0, PD5:0,
PE1:0, PF7:6, 4
Interrupt Ports
PB4, PB2:0, PF1:0 (with pull-up)
PA3, PB3, PF2 (without pull-up)
True Open Drain Ports
PA7:6
Table 12. Port Configuration
MODE
DDR
OR
floating input
0
pull-up input
0
1
open drain output
1
0
push-pull output
1
MODE
DDR
OR
floating input
0
pull-up interrupt input
0
1
open drain output
1
0
push-pull output
1
MODE
DDR
OR
floating input
0
floating interrupt input
0
1
open drain output
1
0
push-pull output
1
MODE
DDR
floating input
0
open drain (high sink ports)
1
Port
Pin name
Input
Output
OR = 0
OR = 1
OR = 0
OR = 1
Port A
PA7:6
floating
true open-drain
PA5:4
floating
pull-up
open drain
push-pull
PA3
floating
floating interrupt
open drain
push-pull
Port B
PB3
floating
floating interrupt
open drain
push-pull
PB4, PB2:0
floating
pull-up interrupt
open drain
push-pull
Port C
PC7:0
floating
pull-up
open drain
push-pull
Port D
PD5:0
floating
pull-up
open drain
push-pull
Port E
PE1:0
floating
pull-up
open drain
push-pull
Port F
PF7:6, 4
floating
pull-up
open drain
push-pull
PF2
floating
floating interrupt
open drain
push-pull
PF1:0
floating
pull-up interrupt
open drain
push-pull
1
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