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MCP98243 bảng dữ liệu(PDF) 30 Page - Microchip Technology

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MCP98243 bảng dữ liệu(HTML) 30 Page - Microchip Technology

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MCP9843/98243
DS22153C-page 30
© 2009 Microchip Technology Inc.
5.1.6
DEVICE ID AND REVISION
REGISTER
The upper byte of this register is used to specify the
device identification and the lower byte is used to
specify device revision. The device ID for the
MCP98243 is 0x21 (hex) and the MCP9843 is 0x00
(hex).
The revision (Lower Byte) begins with 0x00 (hex) for
the first release, with the number being incremented as
revised versions are released. The revision for both
MCP9843 and MCP98243 is 0x01.
REGISTER 5-7:
MCP98243 DEVICE ID AND DEVICE REVISION (READ-ONLY)
→
ADDRESS ‘0000 0111’b
R-0
R-0
R-1
R-0
R-0
R-0
R-0
R-1
Device ID
bit 15
bit 8
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-1
Device Revision
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 15-8
Device ID: Bit 15 to bit 8 are used for device ID
bit 7-0
Device Revision: Bit 7 to bit 0 are used for device revision
REGISTER 5-8:
MCP9843 DEVICE ID AND DEVICE REVISION (READ-ONLY)
→
ADDRESS ‘0000 0111’b
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-0
Device ID
bit 15
bit 8
R-0
R-0
R-0
R-0
R-0
R-0
R-0
R-1
Device Revision
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 15-8
Device ID: Bit 15 to bit 8 are used for device ID
bit 7-0
Device Revision: Bit 7 to bit 0 are used for device revision



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