参数资料
型号: ST72F652AR4T1
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 12 MHz, MICROCONTROLLER, PQFP64
封装: 10 X 10 MM, TQFP-64
文件页数: 105/160页
文件大小: 979K
代理商: ST72F652AR4T1
ST7265x
49/160
I/O PORTS (Cont’d)
Table 12. I/O Port Configurations
Notes:
1. When the I/O port is in input configuration and the associated alternate function is enabled as an output,
reading the DR register will read the alternate function output status.
2. When the I/O port is in output configuration and the associated alternate function is enabled as an input,
the alternate function reads the pin status given by the DR register content.
Hardware Configu ration
INPUT
1)
OPEN-DRAIN
OUTPUT
2)
PUSH-PULL
OUTPUT
2)
CONFIGURATION
PAD
VDD
RPU
EXTERNAL INTERR UPT
POLARITY
DATA BUS
PULL-UP
INTERRUPT
DR REGISTER ACCESS
W
R
FROM
OTHER
PINS
SOURCE (eix)
SELECTI ON
DR
REGISTE R
CONFIG URATION
ALTERNATE INPUT
NOT IMPLEMENTED IN
TRUE OPEN DRAIN
I/O PORTS
ANALOG INPUT
PAD
RPU
DATA BUS
DR
DR REGIST ER ACCESS
W
VDD
ALTERNATE
ENAB LE
OUTPUT
REGIST ER
NOT IMPLEMENTED IN
TRUE OPEN DRAIN
I/O PORTS
R
PAD
RPU
DATA BUS
DR
DR REGISTER ACCESS
VDD
ALTERNATE
ENABLE
OUTPUT
REGISTER
NOT IMPLEMENTED IN
TRUE OPEN DRAIN
I/O PORTS
R
W
1
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