AMC7812B Datasheet, PDF (60/92 Pages) TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS – 12-Bit Analog Monitoring and Control Solution with Multichannel ADC, DACs, and Temperature Sensors

AMC7812B
SBAS625A – SEPTEMBER 2013 – REVISED SEPTEMBER 2013
REGISTERS
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REGISTER MAP
The AMC7812B has several 16-bit registers that consist of a high byte (8 MSBs) and a low byte (8 LSBs). An 8-
bit register pointer points to the proper register. The pointer does not change after an operation. Table 10 lists
the registers for the AMC7812B. Note that the default values are for SPI operation; see the Register Descriptions
section for I²C default values.
Table 10. Register Map
ADDRESS
DEFAULT
(HEX)
R/W
(HEX)
REGISTER
00
R
0000
LT-temperature-data
01
R
0000
D1-temperature-data
02
R
0000
D2-temperature-data
0A
R/W
003C⁽¹⁾ Temperature configuration
0B
R/W
0007⁽¹⁾ Temperature conversion rate
21
R/W
0000⁽¹⁾ η-factor correction (for D1)
22
R/W
0000⁽¹⁾ η-factor correction (for D2)
23
R
0000
ADC-0-data
24
R
0000
ADC-1-data
25
R
0000
ADC-2-data
26
R
0000
ADC-3-data
27
R
0000
ADC-4-data
28
R
0000
ADC-5-data
29
R
0000
ADC-6-data
2A
R
0000
ADC-7-data
2B
R
0000
ADC-8-data
2C
R
0000
ADC-9-data
2D
R
0000
ADC-10-data
2E
R
0000
ADC-11-data
2F
R
0000
ADC-12-data
30
R
0000
ADC-13-data
31
R
0000
ADC-14-data
32
R
0000
ADC-15-data
33
R/W
0000
DAC-0-data
34
R/W
0000
DAC-1-data
35
R/W
0000
DAC-2-data
36
R/W
0000
DAC-3-data
37
R/W
0000
DAC-4-data
38
R/W
0000
DAC-5-data
39
R/W
0000
DAC-6-data
3A
R/W
0000
DAC-7-data
3B
R/W
0000
DAC-8-data
3C
R/W
0000
DAC-9-data
3D
R/W
0000
DAC-10-data
3E
R/W
0000
DAC-11-data
3F
R/W
0000
DAC-0-CLR-setting
40
R/W
0000
DAC-1-CLR-setting
41
R/W
0000
DAC-2-CLR-setting
42
R/W
0000
DAC-3-CLR-setting
43
R/W
0000
DAC-4-CLR-setting
44
R/W
0000
DAC-5-CLR-setting
(1) See register descriptions for I²C default values.
ADDRESS
(HEX)
R/W
45
R/W
46
R/W
47
R/W
48
R/W
49
R/W
4A
R/W
4B
R/W
4C
R/W
4D
R/W
4E
R/W
4F
R
50
R/W
51
R/W
52
R/W
53
R/W
54
R/W
55
R/W
56
R/W
57
R/W
58
R/W
59
R/W
5A
R/W
5B
R/W
5C
R/W
5D
R/W
5E
R/W
5F
R/W
60
R/W
61
R/W
62
R/W
63
R/W
64
R/W
65
R/W
66
R/W
67
R/W
68
R/W
69
R/W
6A
R/W
6B
R/W
6C
R
7C
R/W
DEFAULT
(HEX)
0000
0000
0000
0000
0000
0000
00FF
2000
0070
0000
0000
0000
0000
FFFF
0004
0000
0000
0000
0000
0000
0000
0FFF
0000
0FFF
0000
0FFF
0000
0FFF
0000
07FF
0800
07FF
0800
07FF
0800
0810
0810
2108
0000
1221
N/A
REGISTER
DAC-6-CLR-setting
DAC-7-CLR-setting
DAC-8-CLR-setting
DAC-9-CLR-setting
DAC-10-CLR-setting
DAC-11-CLR-setting
GPIO
AMC configuration 0
AMC configuration 1
Alarm control
Status
ADC channel 0
ADC channel 1
ADC gain
AUTO-DAC-CLR-SOURCE
AUTO-DAC-CLR-EN
SW-DAC-CLR
HW-DAC-CLR-EN-0
HW-DAC-CLR-EN-1
DAC configuration
DAC gain
Input-0-high-threshold
Input-0-low-threshold
Input-1-high-threshold
Input-1-low-threshold
Input-2-high-threshold
Input-2-low-threshold
Input-3-high-threshold
Input-3-low-threshold
LT-high-threshold
LT-low-threshold
D1-high-threshold
D1-low-threshold
D2-high-threshold
D2-low-threshold
Hysteresis-0
Hysteresis-1
Hysteresis-2
Power-down
Device ID
Software reset
60
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