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ST52T301 数据表(PDF) 37 Page - STMicroelectronics

部件名 ST52T301
功能描述  8-Bit OTP/EPROM DuaLogic] MCUs WITH ADC, UART, TIMER, TRIAC & PWM DRIVER
PDF  100 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST52T301 数据表(HTML) 37 Page - STMicroelectronics

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8.1 I/O PORT CONFIGURATION
REG_CONF0 allows dynamic change in I/O Port
configuration during program execution setting the
communication direction of each bit.
IOi
setting equal to ”0” configures the i-th bit
of the P(0:7) I/O Port in input. Data com-
ing from external digital devices are
stored in the 6-th location (INP_PORT)of
the Input register bench.
IOi=”1” sets the
i-th bit of the port in
output. Data stored in the i-th location of
the Register File is written on the port by
using the instruction:
LDPR 2, regi
Bit
Name
Value
Description
0
IO0
0
Input Pin
1
Output Pin
1
IO1
0
Input Pin
1
Output Pin
2
IO2
0
Input Pin
1
Output Pin
3
IO3
0
Input Pin
1
Output Pin
4
IO4
0
Input Pin
1
Output Pin
5
IO5
0
Input Pin
1
Output Pin
6
IO6
0
Input Pin
1
Output Pin
7
IO7
0
Input Pin
1
Output Pin
Table 8.1. Configuration Register 0 Setting
D7 D6 D5 D4 D3 D2 D1 D0
REG_CONF0
I/O Port
IO0
- I/O Communication Direction Bit
IO1
- I/O Communication Direction Bit
IO2
- I/O Communication Direction Bit
IO3
- I/O Communication Direction Bit
IO4
- I/O Communication Direction Bit
IO5
- I/O Communication Direction Bit
IO6
- I/O Communication Direction Bit
IO7
- I/O Communication Direction Bit
Figure 8.3. Configuration Register 0
37/99
ST52T301/E301



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