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STMPE2401 Fiches technique(PDF) 31 Page - STMicroelectronics

No de pièce STMPE2401
Description  24-bit Enhanced port expander with Keypad and PWM controller Xpander logic
PDF  55 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STMPE2401 Fiches technique(HTML) 31 Page - STMicroelectronics

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STMPE2401
GPIO controller
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Table 29. Bit description
Bits
Name
Description
23:0
AF[x]
GPIO Pin ‘x’ Alternate Function Select (where x = 23 to 12).
‘00’ – The corresponding GPIO pin (GPIO[x]) is configured to Primary
Function.
‘01’ – The corresponding GPIO pin (GPIO[x]) is configured to Alternate
Function 1.
‘10’ – The corresponding GPIO pin (GPIO[x]) is configured to Alternate
Function 2.
‘11’ – The corresponding GPIO pin (GPIO[x]) is configured to Alternate
Function 3.
GPAFR_L_msb
Bit
23
22212019181716
AF11
AF10
AF9
AF8
R/W
RW
RW
RWRWRW
RWRWRW
Reset
Value
0
0
0
000
00
GPAFR_L_csb
Bit
15
1413121110
9
8
AF7
AF6
AF5
AF4
R/W
RW
RW
RWRWRW
RWRWRW
Reset
Value
0
0
0
000
00
GPAFR_L_lsb
Bit
7
65
432
10
AF3
AF2
AF1
AF0
R/W
RW
RW
RWRWRW
RWRWRW
Reset
Value
0
0
0
000
00



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