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BLUENRG-2 датащи(PDF) 117 Page - STMicroelectronics

номер детали BLUENRG-2
подробное описание детали  Bluetooth® low energy wireless system-on-chip
PDF  190 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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BLUENRG-2 датащи(HTML) 117 Page - STMicroelectronics

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BlueNRG-2
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3.12.3
GPIO registers
GPIO peripheral base address (GPIO_BASE_ADDR) 0x40000000.
Table 138: GPIO registers
Address
offset
Name
RW
Reset
Description
0x00
DATA
RW
0x00000000
IO0 to IO25 data value.
Writing to a bit will drive the written value on the
corresponding IO when it is configured in GPIO mode
and the output direction. Reading a bit indicates the
pin value
0x04
OEN
RW
0x00000000
GPIO output enable register (1 bit per GPIO)
0: input mode
1: output mode
0x08
PE
RW
0x03FFFFFF
Pull enable (1 bit per IO)
0: pull disabled
1: pull enabled
0x0C
DS
RW
0x00000000
IO driver strength (1 bit per IO).
0: low drive
1: high drive
0x10
IS
RW
0x00000000
Interrupt sense register (1 bit per IO)
0: edge detection
1: level detection
0x14
IBE
RW
0x00000000
Interrupt edge register (1 bit per IO).
0: single edge
1: both edges
0x18
IEV
RW
0x00000000
Interrupt event register (1 bit per IO)
0: falling edge or low level
1: rising edge or high level
0x1C
IE
RW
0x00000000
Interrupt mask register (1 bit per IO)
0: Interrupt disabled
1: Interrupt enabled
0x24
MIS
R
0x00000000
Masked interrupt status register (1 bit per IO)
0x28
IC
W
0x00000000
Interrupt clear register (1 bit per IO)
0: no effect.
1: clear interrupt
0x2C
MODE0
RW
0x00000000
Select mode for IO0 to IO7.
000b: GPIO mode
001b: Serial1 mode
100b: Serial0 mode
101b: Serial2 mode
Refer to the detailed description below.



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