AMC7812SPAPR Datasheet, PDF (61/92 Pages) Texas Instruments – 12-Bit Analog Monitoring and Control Solution with Multichannel ADC, DACs, and Temperature Sensors

AMC7812
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TEMPERATURE DATA REGISTERS (Read-Only)
In twos complement format, 0.125°C/LSB.
SBAS513E – JANUARY 2011 – REVISED SEPTEMBER 2013
LT-Temperature-Data Register (Address = 00h, Default 0000h, 0°C)
Store the local temperature sensor reading in twos complement data format.
MSB
BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10
LT-11 LT-10 LT-9 LT-8 LT-7 LT-6
BIT 9
LT-5
BIT 8
LT-4
BIT 7
LT-3
BIT 6
LT-2
BIT 5
LT-1
BIT 4
LT-0
BIT 3
0
BIT 2
0
BIT 1
0
LSB
BIT 0
0
D1-Temperature-Data Register (Address = 01h, Default 0000h, 0°C)
Store the remote temperature sensor D1 reading in twos complement data format.
MSB
BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10
D1-11 D1-10 D1-9 D1-8 D1-7 D1-6
BIT 9
D1-5
BIT 8
D1-4
BIT 7
D1-3
BIT 6
D1-2
BIT 5
D1-1
BIT 4
D1-0
BIT 3
0
BIT 2
0
BIT 1
0
LSB
BIT 0
0
D2-Temperature-Data Register (Address = 02h, Default 0000h, 0°C)
Store the remote temperature sensor D2 reading in twos complement data format.
MSB
BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10
D2-11 D2-10 D2-9 D2-8 D2-7 D2-6
BIT 9
D2-5
BIT 8
D2-4
BIT 7
D2-3
BIT 6
D2-2
BIT 5
D2-1
BIT 4
D2-0
BIT 3
0
BIT 2
0
BIT 1
0
LSB
BIT 0
0
TEMPERATURE CONFIGURATION REGISTER (Read/Write, Address = 0Ah)
When using the SPI, the following bit configuration must be used; default = 003Ch.
MSB
BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10
0
0
0
0
0
0
BIT 9
0
BIT 8
0
BIT 7
0
BIT 6
0
BIT 5 BIT 4 BIT 3
D2EN D1EN LTEN
BIT 2
RC
BIT 1
0
LSB
BIT 0
0
When using the I²C interface, the following bit configuration must be used; default = 3CFFh.
MSB
BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10
0
0 D2EN D1EN LTEN RC
BIT 9
0
BIT 8
0
BIT 7
1
BIT 6
1
BIT 5
1
BIT 4
1
BIT 3
1
BIT 2
1
BIT 1
1
LSB
BIT 0
1
The bit descriptions are shown in Table 11.
NAME
D2EN
D1EN
LTEN
RC
Table 11. Temperature Configuration Register Bit Descriptions
DEFAULT
1
1
1
1
R/W
DESCRIPTION
Remote temperature sensor D2 enable.
R/W
If this bit = '1', D2 is enabled.
If this bit = '0', D2 is disabled.
Remote temperature sensor D1 enable.
R/W
If this bit = '1', D1 is enabled.
If this bit = '0', D1 is disabled.
Local temperature sensor enable.
R/W
If this bit = '1', LT is enabled.
If this bit = '0', LT is disabled.
Resistance correction enable.
R/W
If this bit = '1', correction is enabled.
If this bit = '0', correction is disabled.
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