AMC7812SPAPR datasheet(61/92 Pages) TI

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AMC7812

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SBAS513E – JANUARY 2011 – REVISED SEPTEMBER 2013

TEMPERATURE DATA REGISTERS (Read-Only)

In twos complement format, 0.125°C/LSB.

LT-Temperature-Data Register (Address = 00h, Default 0000h, 0°C)

Store the local temperature sensor reading in twos complement data format.

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

LT-11

LT-10

LT-9

LT-8

LT-7

LT-6

LT-5

LT-4

LT-3

LT-2

LT-1

LT-0

D1-Temperature-Data Register (Address = 01h, Default 0000h, 0°C)

Store the remote temperature sensor D1 reading in twos complement data format.

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

D1-11

D1-10

D1-9

D1-8

D1-7

D1-6

D1-5

D1-4

D1-3

D1-2

D1-1

D1-0

D2-Temperature-Data Register (Address = 02h, Default 0000h, 0°C)

Store the remote temperature sensor D2 reading in twos complement data format.

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

D2-11

D2-10

D2-9

D2-8

D2-7

D2-6

D2-5

D2-4

D2-3

D2-2

D2-1

D2-0

TEMPERATURE CONFIGURATION REGISTER (Read/Write, Address = 0Ah)

When using the SPI, the following bit configuration must be used; default = 003Ch.

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

D2EN

D1EN

LTEN

When using the I2C interface, the following bit configuration must be used; default = 3CFFh.

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

D2EN

D1EN

LTEN

The bit descriptions are shown in Table 11.

Table 11. Temperature Configuration Register Bit Descriptions

NAME

DEFAULT

R/W

DESCRIPTION

Remote temperature sensor D2 enable.

D2EN

R/W

If this bit = '1', D2 is enabled.

If this bit = '0', D2 is disabled.

Remote temperature sensor D1 enable.

D1EN

R/W

If this bit = '1', D1 is enabled.

If this bit = '0', D1 is disabled.

Local temperature sensor enable.

LTEN

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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