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MCP48FVB21 数据表(PDF) 33 Page - Microchip Technology

部件名 MCP48FVB21
功能描述  8-/10-/12-Bit Single/Dual Voltage Output Volatile Digital-to-Analog Converters with SPI Interface
PDF  84 Pages
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

MCP48FVB21 数据表(HTML) 33 Page - Microchip Technology

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 2015 Microchip Technology Inc.
DS20005466A-page 33
MCP48FVBXX
4.2.5
DEVICE REGISTERS
Register 4-1 shows the format of the DAC Output Value
registers. These registers will be either 8 bits, 10 bits,
or 12 bits wide. The values are right justified.
REGISTER 4-1:
DAC0 AND DAC1 REGISTERS
U-0
U-0
U-0
U-0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
12-bit
—
—
—
—
D11
D10
D09
D08
D07
D06
D05
D04
D03
D02
D01
D00
10-bit
—
—
—
—
—(1)
—(1)
D09
D08
D07
D06
D05
D04
D03
D02
D01
D00
8-bit
—
—
—
—
—(1)
—(1)
—(1)
—(1)
D07
D06
D05
D04
D03
D02
D01
D00
bit 15
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
= 12-bit device
=
10-bit device
= 8-bit device
12-bit
10-bit
8-bit
bit 15-12 bit 15-10 bit 15-8
Unimplemented:
Read as ‘0’
bit 11-0
—
—
D11-D00:
DAC Output value - 12-bit devices
FFFh =Full-Scale output value
7FFh =Mid-Scale output value
000h =Zero-Scale output value
—
bit 9-0
—
D09-D00:
DAC Output value - 10-bit devices
3FFh =Full-Scale output value
1FFh =Mid-Scale output value
000h =Zero-Scale output value
——bit 7-0
D07-D00:
DAC Output value - 8-bit devices
FFh =Full-Scale output value
7Fh =Mid-Scale output value
000h =Zero-Scale output value
Note 1:
Unimplemented bit, read as ‘0’.



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