参数资料
型号: ST7FLITE09Y0B3
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP16
封装: 0.300 INCH, PLASTIC, DIP-16
文件页数: 52/115页
文件大小: 781K
代理商: ST7FLITE09Y0B3
ST7FLITE0
41/115
I/O PORTS (Cont’d)
Table 10. 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)
CONDITION
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
CONDITIO N
ALTERNATE INPUT
ANALOG INPUT
PAD
RPU
DATA BUS
DR
DR REGIST ER ACCESS
R/W
VDD
ALTERNATE
ENAB LE
OUTPUT
REGIST ER
PAD
RPU
DATA BUS
DR
DR REGIST ER ACCESS
R/W
VDD
ALTERNATE
ENAB LE
OUTPUT
REGIST ER
1
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