参数资料
型号: MCP23S18T-E/SP
元件分类: 微控制器/微处理器
英文描述: PIA-GENERAL PURPOSE, PDIP28
封装: 0.300 INCH, PLASTIC, SPDIP-28
文件页数: 22/56页
文件大小: 738K
代理商: MCP23S18T-E/SP
2008 Microchip Technology Inc.
DS22103A-page 29
MCP23018/MCP23S18
1.6.11
OUTPUT LATCH REGISTER (OLAT)
The OLAT register provides access to the output
latches. A read from this register results in a read of the
OLAT and not the port itself. A write to this register
modifies the output latches that modifies the pins
configured as outputs.
REGISTER 1-13:
OLAT – OUTPUT LATCH REGISTER 0
R/W-0
OL7
OL6
OL5
OL4
OL3
OL2
OL1
OL0
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
OL7:OL0: Reflects the logic level on the output latch <7:0>.
1
= Logic-high.
0
= Logic-low.
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