參數(shù)資料
型號: STMPE2401TBR
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 24 I/O, PIA-GENERAL PURPOSE, PBGA36
封裝: LEAD FREE, TFBGA-36
文件頁數(shù): 21/55頁
文件大?。?/td> 959K
代理商: STMPE2401TBR
GPIO controller
STMPE2401
28/55
10
GPIO controller
A total of 24 GPIOs are available in the STMPE2401 port expander IC. Most of the GPIOs
are sharing physical pins with some alternate functions. The GPIO controller contains the
registers that allow the host system to configure each of the pins into either a GPIO, or one
of the alternate functions. Unused GPIOs should be configured as outputs to minimize the
power consumption.
Table 26. GPIO controller
Address
Register name
Description
Auto-Increment
(during sequential R/W)
0xA2
GPMR_msb
GPIO Monitor Pin State Register
Yes
0xA3
GPMR_csb
Yes
0xA4
GPMR_lsb
Yes
0x83
GPSR_msb
GPIO Set Pin State Register
Yes
0x84
GPSR_csb
Yes
0x85
GPSR_lsb
Yes
0x86
GPCR_msb
GPIO Clear Pin State Register
Yes
0x87
GPCR_csb
Yes
0x88
GPCR_lsb
Yes
0x89
GPDR_msb
GPIO Set Pin Direction Register
Yes
0x8A
GPDR_csb
Yes
0x8B
GPDR_lsb
Yes
0x8C
GPEDR_msb
GPIO Edge Detect Status Register
Yes
0x8D
GPEDR_csb
Yes
0x8E
GPEDR_lsb
Yes
0x8F
GPRER_msb
GPIO Rising Edge Register
Yes
0x90
GPRER_csb
Yes
0x91
GPRER_lsb
Yes
0x92
GPFER_msb
GPIO Falling Edge Register
Yes
0x93
GPFER_csb
Yes
0x94
GPFER_lsb
Yes
0x95
GPPUR_msb
GPIO Pull Up Register
Yes
0x96
GPPUR_csb
Yes
0x97
GPPUR_lsb
Yes
0x98
GPPDR_msb
GPIO Pull Down Register
Yes
0x99
GPPDR_csb
Yes
0x9A
GPPDR_lsb
Yes
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