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MCP19116-E/MJ bảng dữ liệu(PDF) 59 Page - Microchip Technology

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MCP19116-E/MJ bảng dữ liệu(HTML) 59 Page - Microchip Technology

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 2015-2016 Microchip Technology Inc.
DS20005479B-page 59
MCP19116/7
9.0
DEVICE CALIBRATION
Read-only memory locations 2080h through 208Fh
contain factory calibration data. Refer to Section 18.0
“Flash Program Memory Control” for information on
how to read from these memory locations.
9.1
Calibration Word 1
Calibration Word 1 is at memory location 2080h. The
DCSRFB<6:0> bits set the offset calibration for the
current
sense
differential
amplifier
(A2)
when
configured using the internal feedback resistor. A
calibration range of ±30 mV is provided with 20h and
00h being midscale (no offset). The MSB is polarity only.
Firmware must read these values and copy them into
the DCSCAL Special Function Register located in Bank
3 at 199h.
REGISTER 9-1:
CALWD1: CALIBRATION WORD 1 REGISTER
U-0
U-0
U-0
U-0
U-0
U-0
—
—
—
—
—
—
bit 13
bit 8
U-0
R/P-1
R/P-1
R/P-1
R/P-1
R/P-1
R/P-1
R/P-1
—
DCSRFB6
DCSRFB5
DCSRFB4
DCSRFB3
DCSRFB2
DCSRFB1
DCSRFB0
bit 7
bit 0
Legend:
R = Readable bit
P = Programmable bit
U = Unused bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 13-7
Unimplemented: Read as ‘0’
bit 6-0
DCSRFB<6:0>: Input Differential Current Sense Calibration bits when configured using internal
feedback resistor



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