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ST7263BEx bảng dữ liệu(PDF) 50 Page - STMicroelectronics

tên linh kiện ST7263BEx
Giải thích chi tiết về linh kiện  Low speed USB 8-bit MCU family with up to 32 KB Flash/ROM, DFU capability, 8-bit ADC, WDG, timer, SCI and I²C
PDF  186 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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ST7263BEx bảng dữ liệu(HTML) 50 Page - STMicroelectronics

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I/O ports
ST7263Bxx
50/186
Doc ID 7516 Rev 8
9.3.4
Port D
9.3.5
Register description
DATA registers (PxDR)
Address
Port A Data register (PADR): 0000h
Port B Data register (PBDR): 0002h
Port C Data register (PCDR): 0004h
Port D Data register (PDDR): 0006h
Reset value
Port A: 0000 0000 (00h)
Port B: 0000 0000 (00h)
Port C: 1111 x000 (FXh)
Port D: 0000 0000 (00h)
Note:
For Port C, unused bits (7-3) are not accessible.
The DR register has a specific behavior according to the selected input/output configuration.
Writing the DR register is always taken into account even if the pin is configured as an input.
Reading the DR register returns either the DR register latch content (pin configured as
output) or the digital value applied to the I/O pin (pin configured as input).
Note:
When using open-drain I/Os in output configuration, the value read in DR is the digital value
applied to the I/Opin.
Table 15.
Port D description
Port D
I / O
Alternate function
Input(1)
Output
Signal
Condition
PD0
without pull-up
push-pull
Analog input (ADC)
CH[3:0] = 1000
(ADCCSR)
PD1
without pull-up
push-pull
Analog input (ADC)
CH[3:0] = 1001
(ADCCSR)
PD2
without pull-up
push-pull
Analog input (ADC)
CH[3:0] = 1010
(ADCCSR)
PD3
without pull-up
push-pull
Analog input (ADC)
CH[3:0] = 1011
(ADCCSR)
PD4
with pull-up
push-pull
PD5
with pull-up
push-pull
PD6
with pull-up
push-pull
PD7
with pull-up
push-pull
1.
Reset state



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