参数资料
型号: STR712FZH1TR
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 66 MHz, RISC MICROCONTROLLER, PBGA144
封装: 10 X 10 MM, 1.70 MM HEIGHT, LFBGA-144
文件页数: 22/78页
文件大小: 2018K
代理商: STR712FZH1TR
STR71xF
System architecture
29/78
3.6
I/O port configuration
Legend:
AIN: Analog Input
CMOS: CMOS Input levels
IPUPD: Input Pull Up /Pull Down
TTL: TTL Input levels
N.A.: not applicable. In Output mode, a read access to the port gets the output latch value.
Table 8.
Port bit configuration table
Configuration Mode
Input
buffer
PxD
register
PxC2
register
PxC1
register
PxC0
register
Read
access
Write
access
INPUT
TTL Input Floating
TTL floating
I/O pin
don’t care
0
1
CMOS Input Floating
CMOS floating
I/O pin
don’t care
0
1
0
CMOS Input Pull-Down
(IPUPD)
CMOS Pull-
Down
I/O pin
0
1
CMOS Input Pull-Up (IPUPD)
CMOS
Pull-Up
I/O pin
1
0
1
Analog input
AIN
0
don’t care
0
OUTPUT
Output Open-Drain
N.A.
I/O pin
0 or 1
1
0
Output Push-Pull
N.A.
last value
written
0 or 1
1
0
1
Alternate Function Open-Drain CMOS floating
I/O pin
don’t care
1
0
Alternate Function Push-Pull
CMOS floating
I/O pin
don’t care
1
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