參數(shù)資料
型號(hào)： AD7877ACPZ-REEL7
廠商： ANALOG DEVICES INC
元件分類： 消費(fèi)家電
英文描述： 16-Bit, Pseudo Bipolar, Fully Diff Input, 250kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC 8-MSOP -40 to 85
中文描述： SPECIALTY CONSUMER CIRCUIT, QCC32
封裝： 5 X 5 MM, ROHS COMPLIANT, MO-220VHHD-2, LFCSP-32
文件頁數(shù)： 33/44頁
文件大?。?/td> 1002K
代理商： AD7877ACPZ-REEL7
AD7877
REGISTER MAPS
Table 13. Write Register Map
Rev. A | Page 33 of 44
Register Address
Binary
Register Name
None
Control Register 1
Description
Unused. Writing to this address has no effect.
Contains ADC channel address, register read address, and ADC
mode.
Contains ADC averaging, acquisition time, power manage-
ment, first conversion delay, STOPACQ polarity, and reference
and timer settings.
Contains status of high/low limit comparisons for TEMP1, BAT1,
BAT2, and AUX1, and enable bits to allow these channels to
become interrupt sources.
User-programmable AUX1 upper limit.
User-programmable AUX1 lower limit.
User-programmable BAT1 upper limit.
User-programmable BAT1 lower limit.
User-programmable BAT2 upper limit.
User-programmable BAT2 lower limit.
User-programmable TEMP1 lower limit.
User-programmable TEMP1 upper limit.
Contains channel selection data for slave mode (software)
sequencing.
Contains channel selection data for master mode (hardware)
sequencing.
Contains DAC data and setup information.
Not a physical register. Enables writing to extended writing
map.
WADD3 WADD2 WADD1 WADD0 HEX
0
0
0
0
0
0
0
1
0
1
0
0
1
0
2
Control Register 2
0
0
1
1
3
Alert
Status/Enable
Register
AUX1 High Limit
AUX1 Low Limit
BAT1 High Limit
BAT1 Low Limit
BAT2 High Limit
BAT2 Low Limit
TEMP1 Low Limit
TEMP1 High Limit
Sequencer
Register 0
Sequencer
Register 1
DAC Register
Extended Write
0
0
0
0
1
1
1
1
1
1
1
1
1
0
0
0
0
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
4
5
6
7
8
9
A
B
C
1
1
0
1
D
1
1
1
1
1
1
0
1
E
F
Table 14. Extended Writing Map
Register Address
Binary
EADD3 EADD2
0
0
Register Name
GPIO Control
Register 1
GPIO Control
Register 2
GPIO Data
Description
Contains polarity, direction, enabling, and interrupt enabling
settings for GPIO1 and GPIO2.
Contains polarity, direction, enabling, and interrupt enabling
settings for GPIO3 and GPIO4.
Contains GPIO1 to GPIO4 data.
EADD1
0
EADD0 HEX
0
0
0
0
0
1
1
0
0
1
0
2
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