參數(shù)資料
型號: ST72124J2T
廠商: 意法半導(dǎo)體
英文描述: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, SCI INTERFACES
中文描述: 8位單電壓閃存,ADC和16位定時器,SPI和脊髓損傷界面微控制器
文件頁數(shù): 41/153頁
文件大小: 1533K
代理商: ST72124J2T
ST72334J/N, ST72314J/N, ST72124J
41/153
I/O PORTS
(Cont’d)
Table 7. 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 Configuration
I
1
O
2
P
2
CONFIGURATION
PAD
V
DD
R
PU
EXTERNAL INTERRUPT
SOURCE (ei
x
)
POLARITY
SELECTION
DATA BUS
PULL-UP
CONFIGURATION
INTERRUPT
DR REGISTER ACCESS
W
R
FROM
OTHER
PINS
DR
REGISTER
ALTERNATE INPUT
NOT IMPLEMENTED IN
TRUE OPEN DRAIN
I/O PORTS
ANALOG INPUT
PAD
R
PU
DATA BUS
DR
DR REGISTER ACCESS
R/W
V
DD
ALTERNATE
OUTPUT
ALTERNATE
ENABLE
REGISTER
NOT IMPLEMENTED IN
TRUE OPEN DRAIN
I/O PORTS
PAD
R
PU
DATA BUS
DR
DR REGISTER ACCESS
R/W
V
DD
ALTERNATE
OUTPUT
ALTERNATE
ENABLE
REGISTER
NOT IMPLEMENTED IN
TRUE OPEN DRAIN
I/O PORTS
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