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MCP23016 датащи(PDF) 7 Page - Microchip Technology

номер детали MCP23016
подробное описание детали  16-Bit I2C I/O Expander
PDF  38 Pages
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производитель  MICROCHIP [Microchip Technology]
домашняя страница  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP23016 датащи(HTML) 7 Page - Microchip Technology

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© 2007 Microchip Technology Inc.
DS20090C-page 7
MCP23016
1.7.2
OUTPUT LATCH REGISTERS
Two registers provide access to the two port output
latches:
• OLAT0 (provides access to the output latch for
port GP0)
• OLAT1 (provides access to the output latch for
port GP1)
A read from these registers results in a read of the latch
that controls the output and not the actual port. A write
to these registers updates the output latch that controls
the output.
REGISTER 1-3:
OLAT0 - OUTPUT LATCH REGISTER 0
REGISTER 1-4:
OLAT1 - OUTPUT LATCH REGISTER 1
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
OL0.7
OL0.6
OL0.5
OL0.4
OL0.3
OL0.2
OL0.1
OL0.0
bit 7
bit 0
bit 7-0
OL0.0:O0.7: Reflects the logic level on the output latch.
1
= Logic ‘1’
0
= Logic ‘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
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
OL1.7
OL1.6
OL1.5
OL1.4
OL1.3
OL1.2
OL1.1
OL1.0
bit 7
bit 0
bit 7-0
OL1.0:O1.7: Reflects the logic level on the output latch.
1
= Logic ‘1’
0
= Logic ‘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



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