AMC7812SPAPR datasheet(78/92 Pages) TI

78 / 92 page

AMC7812

SBAS513E – JANUARY 2011 – REVISED SEPTEMBER 2013

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HYSTERESIS REGISTERS

The hysteresis registers define the hysteresis in the alarm detection of an individual alarm.

Hysteresis Register 0 (Read/Write, Address = 68h, Default = 0810h, 8 LSB)

This register contains the hysteresis values for CH0 and CH1.

MSB

LSB

BIT 15

BIT 14

BIT 13

BIT 12

BIT 11

BIT 10

BIT 9

BIT 8

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

CH0-

CH1-

HYS-6

HYS-5

HYS-4

HYS-3

HYS-2

HYS-1

HYS-0

HYS-6

HYS-5

HYS-4

HYS-3

HYS-2

HYS-1

HYS-0

Bits[14:8]

CH0-HYS-n: Hysteresis of CH0, 1 LSB per step.

Bits[7:1]

CH1-HYS-n: Hysteresis of CH1, 1 LSB per step.

Hysteresis Register 1 (Read/Write, Address = 69h, Default = 0810h, 8 LSB)

This register contains the hysteresis values for CH2 and CH3.

MSB

LSB

BIT 15

BIT 14

BIT 13

BIT 12

BIT 11

BIT 10

BIT 9

BIT 8

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

CH2-

CH3-

HYS-6

HYS-5

HYS-4

HYS-3

HYS-2

HYS-1

HYS-0

HYS-6

HYS-5

HYS-4

HYS-3

HYS-2

HYS-1

HYS-0

Bits[14:8]

CH2-HYS-n: Hysteresis of CH2, 1 LSB per step.

Bits[7:1]

CH3-HYS-n: Hysteresis of CH3, 1 LSB per step.

Hysteresis Register 2 (Read/Write, Address = 6Ah, Default = 2108h, 8°C)

This register contains the hysteresis values for D2, D1, and LT. The range is 0°C to +31°C.

MSB

LSB

BIT 15

BIT 14

BIT 13

BIT 12

BIT 11

BIT 10

BIT 9

BIT 8

BIT 7

BIT 6

BIT 5

BIT 4

BIT 3

BIT 2

BIT 1

BIT 0

D2-

D1-

LT-

HYS-7

HYS-6

HYS-5

HYS-4

HYS-3

HYS-7

HYS-6

HYS-5

HYS-4

HYS-3

HYS-7

HYS-6

HYS-5

HYS-4

HYS-3

Bits[14:10]

D2-HYS-n: Hysteresis of D2, 1°C per step. Note that bits D2-HYS-[2:0] are always '0'.

Bits[9:5]

D1-HYS-n: Hysteresis of D1, 1°C per step. Note that bits D1-HYS-[2:0] are always '0'.

Bits[4:0]

LT-HYS-n: Hysteresis of LT, 1°C per step. Note that bits LT-HYS-[2:0] are always '0'.

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