AMC7832 Datasheet, PDF (52/70 Pages) Texas Instruments – AMC7832 12-Bit Analog Monitor and Control Solution with Multi-Channel ADC, Bipolar DACs, Temperature Sensor and GPIO Ports

AMC7832
SLAS836 – MARCH 2014
www.ti.com
Table 45. Register name: LT-Lower-Thresh (low byte) – Address: 0x96, Default: 0x00 (READ/WRITE)
REGISTER
NAME
LT Lower
Thresh (low)
ADDRESS
0x96
BIT NAME
7:0 THRL-LT(7:0)
DESCRIPTION
DEFAULT
VALUE
Sets 12-bit lower threshold value for the local temperature sensor
in two’s complement format.
0x00
Table 46. Register name: LT-Lower-Thresh (high byte) – Address: 0x97, Default: 0x08 (READ/WRITE)
REGISTER
NAME
LT Lower
Thresh
(high)
ADDRESS
0x97
BIT NAME
DESCRIPTION
DEFAULT
VALUE
7:4 Reserved
Reserved for factory use.
All zeros
3:0 THRL-LT(11:8) Sets 12-bit lower threshold value for the local temperature sensor 0x08
in two’s complement format.
8.5.12 Hysteresis: Address 0xA0 – 0xA5
The hysteresis registers define the hysteresis in the out-of-range alarms.
Table 47. Register name: ADCn-Hysteresis – Address: 0xA0 - 0xA4, Default: 0x08 (READ/WRITE)
REGISTER
NAME
ADCn
Hysterisis
ADDRESS
0xA0 to
0xA4
BIT NAME
7
Reserved
6:0 HYSTn(6:0)
DESCRIPTION
Reserved for factory use.
Hysteresis of unipolar LV_ADCn, 1 LSB per step
DEFAULT
VALUE
0
0x08
Table 48. Register name: LT-Hysteresis – Address: 0xA5, Default: 0x08 (READ/WRITE)
REGISTER
NAME
LT
Hysterisis
ADDRESS
0xA5
BIT NAME
7:5 Reserved
4:0 HYST-LT(4:0)
DESCRIPTION
Reserved for factory use.
Hysteresis of local temperature sensor, 1°C per step. The range
is 0°C to 31°C.
DEFAULT
VALUE
000
All zeros
8.5.13 Power-Down Registers: Address 0xB0 – 0xB3
Table 49. Register name: DAC Clear 0 – Address: 0xB0, Default: 0x00 (READ/WRITE)
REGISTER
NAME
DAC Clear
0
ADDRESS
0xB0
BIT NAME
7
CLR-C1
6
CLR-C0
5
CLR-B7
4
CLR-B6
3
CLR-A11
2
CLR-A10
1
CLR-A9
0
CLR-A8
DESCRIPTION
This register uses software to force the DAC into a clear state.
If CLRn = '1', DAC_n is forced into a clear state.
If CLRn = '0', DAC_n is restored to normal operation.
DEFAULT
VALUE
0
0
0
0
0
0
0
0
Table 50. Register name: DAC Clear 1 – Address: 0xB1, Default: 0x00 (READ/WRITE)
REGISTER
NAME
DAC Clear
1
ADDRESS
0xB1
BIT NAME
7:4 Reserved
3
CLR-D5
2
CLR-D4
1
CLR-D3
0
CLR-D2
DESCRIPTION
Reserved for factory use
This register uses software to force the DAC into a clear state.
If CLRn = '1', DAC_n is forced into a clear state.
If CLRn = '0', DAC_n is restored to normal operation.
DEFAULT
VALUE
All zeros
0
0
0
0
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