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STMPE2403 数据表(PDF) 33 Page - STMicroelectronics

部件名 STMPE2403
功能描述  24-bit Enhanced port expander with Keypad and PWM controller Xpander logic
PDF  63 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STMPE2403 数据表(HTML) 33 Page - STMicroelectronics

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STMPE2403
GPIO controller
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10.1
GPIO control registers
A group of registers are used to control the exact function of each of the 24 GPIO. All GPIO
registers are named as GPxxx_yyy, where
Xxx represents the functional group
Yyy represents the byte position of the GPIO
Lsb registers controls GPIO[7:0]
Csb registers controls GPIO[15:8]
Msb registers controls GPIO[23:16]
Note:
This convention does not apply to the GPIO Alternate Function Registers
Address
Register Name
Description
Auto-Increment
(during sequential R/W)
0x9B
GPAFR_U_msb
GPIO Alternate Function Register (Upper Bit)
Yes
0x9C
GPAFR_U_csb
Yes
0x9D
GPAFR_U_lsb
Yes
0x9E
GPAFR_L_msb
GPIO Alternate Function Register (Lower Bit)
Yes
0x9F
GPAFR_L_csb
Yes
0xA0
GPAFR_L_lsb
Yes
0xA1
MUX_CTRL
MUX Control Register
Yes
0xA5
COMPAT2401
STMPE2401 Pin Compatibility Register
Yes
0xA6 – 0xAF
RESERVED
Reserved
Yes
Table 31. GPIO controller (continued)
Table 32. GPIO control registers
Bit
7
65
43
210
GPxxx_msb
IO-23
IO-22
IO-21
IO-20
IO-19
IO-18
IO-17
IO-16
GPxxx_csb
IO-15
IO-14
IO-13
IO-12
IO-11
IO-10
IO-9
IO-8
GPxxx_lsb
IO-7
IO-6
IO-5
IO-4
IO-3
IO-2
IO-1
IO-0



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