参数资料
型号: MCP23S08T-E/SS
厂商: Microchip Technology
文件页数: 11/44页
文件大小: 0K
描述: IC I/O EXPANDER SPI 8B 20SSOP
标准包装: 1,600
接口: SPI
输入/输出数: 8
中断输出:
频率 - 时钟: 10MHz
电源电压: 1.8 V ~ 5.5 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-SSOP(0.209",5.30mm 宽)
供应商设备封装: 20-SSOP
包装: 带卷 (TR)
包括: POR
配用: GPIODM-KPLCD-ND - BOARD DEMO LCD GPIO EXP KEYPAD
2007 Microchip Technology Inc.
DS21919E-page 19
MCP23008/MCP23S08
1.6.10
PORT (GPIO) REGISTER
The GPIO register reflects the value on the port.
Reading from this register reads the port. Writing to this
register modifies the Output Latch (OLAT) register.
REGISTER 1-10:
GPIO – GENERAL PURPOSE I/O PORT REGISTER (ADDR 0x09)
R/W-0
GP7
GP6
GP5
GP4
GP3
GP2
GP1
GP0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
GP7:GP0: These bits reflect the logic level on the pins <7:0>
1 = Logic-high.
0 = Logic-low.
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