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ST7263BEx Datasheet(PDF) 51 Page - STMicroelectronics

No. de pieza ST7263BEx
Descripción Electrónicos  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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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7263BEx Datasheet(HTML) 51 Page - STMicroelectronics

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ST7263Bxx
I/O ports
Doc ID 7516 Rev 8
51/186
.
Data Direction register (PxDDR)
Address
Port A Data Direction register (PADDR): 0001h
Port B Data Direction register (PBDDR): 0003h
Port C Data Direction register (PCDDR): 0005h
Port D Data Direction register (PDDDR): 0007h
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
.
7
0
D7
D6
D5
D4
D3
D2
D1
D0
Read/write
[7:0] D[7:0] Data register 8 bits.
7
0
DD7
DD6
DD5
DD4
DD3
DD2
DD1
DD0
Read/write
[7:0]D D[7:0] Data Direction register 8 bits.
The DDR register gives the input/output direction configuration of the pins. Each bit
is set and cleared by software.
0: input mode
1: output mode
Table 16.
I/O ports register map
Address
(Hex.)
Register
Label
7
6
543
2
1
0
00
PADR
MSB
LSB
01
PADDR
MSB
LSB
02
PBDR
MSB
LSB
03
PBDDR
MSB
LSB
04
PCDR
MSB
LSB
05
PCDDR
MSB
LSB
06
PDDR
MSB
LSB
07
PDDDR
MSB
LSB



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