參數(shù)資料
型號: ST7FLIT19BF1U6TR
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, QCC20
封裝: LEAD FREE, QFN-20
文件頁數(shù): 100/153頁
文件大?。?/td> 2862K
代理商: ST7FLIT19BF1U6TR
ST7LITE1xB
50/153
I/O PORTS (Cont’d)
Table 9. I/O 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 Configuration
INPUT
1)
OPEN-DRAIN
O
U
TPUT
2)
PUS
H
-PULL
O
UTPUT
2)
CONDITION
PAD
EXTERNAL INTERRUPT
POLARITY
DATA BUS
INTERRUPT
DR REGISTER ACCESS
W
R
FROM
OTHER
PINS
SOURCE (eix)
SELECTION
DR
REGISTER
ALTERNATE INPUT
ANALOG INPUT
To on-chip peripheral
COMBINATIONAL
LOGIC
PAD
DATA BUS
DR
DR REGISTER ACCESS
R/W
REGISTER
PAD
DATA BUS
DR
DR REGISTER ACCESS
R/W
ALTERNATE
ENABLE
OUTPUT
REGISTER
BIT
From on-chip periphera
l
1
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