AD7293 datasheet(48/79 Pages) AD

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AD7293

Data Sheet

Rev. D | Page 48 of 79

HIGH LIMIT 0 (PAGE 0x04)

Table 56. High Limit 0 (Page 0x04)

Address

(Hex)

Name

Byte1

Access

Type1

Default

Value1

0x00

No op

N/A

0x00

0x01

Page select pointer

R/W

0x00

0x02

Conversion command2

N/A

0x03

Result

0x0000

0x04

DAC enable

R/W

0x00

0x05

GPIO

R/W

0x00

0x0C

Device ID

0x0018

0x0F

Software reset

R/W

0x0000

0x10

VIN0 high limit

R/W

0xFFF0

0x11

VIN1 high limit

R/W

0xFFF0

0x12

VIN2 high limit

R/W

0xFFF0

0x13

VIN3 high limit

R/W

0xFFF0

0x20

TSENSEINT high limit

R/W

0xFFF0

0x21

TSENSED0 high limit

R/W

0xFFF0

0x22

TSENSED1 high limit

R/W

0xFFF0

0x28

ISENSE0 high limit

R/W

0xFFF0

0x29

ISENSE1 high limit

R/W

0xFFF0

0x2A

ISENSE2 high limit

R/W

0xFFF0

0x2B

ISENSE3 high limit

R/W

0xFFF0

N/A means not applicable.

Not a physical register.

VINx High Limit Registers (Register 0x10 to Register 0x13)

These read/write 16-bit registers set the high limits for the four

input channels. The default value of these registers is 0xFFF0.

Temperature Sensor (TSENSEx) High Limit Registers

(Register 0x20 to Register 0x22)

These read/write 16-bit registers set the high limits for the three

temperature sensor channels. The default value of these

registers is 0xFFF0.

Table 57. Temperature Sensor High Limit Registers

(Register 0x20 to Register 0x22)

Bit Number(s)

Bit Name

Description

D15

B11

0: −256°C

1: 0°C (default)

D14

B10

0: 0°C

1: 128°C (default)

D13

0: 0°C

1: 64°C (default)

D12

0: 0°C

1: 32°C (default)

D11

0: 0°C

1: 16°C (default)

D10

0: 0°C

1: 8°C (default)

0: 0°C

1: 4°C (default)

0: 0°C

1: 2°C (default)

0: 0°C

1: 1°C (default)

0: 0°C

1: 0.5°C (default)

0: 0°C

1: 0.25°C (default)

0: 0°C

1: 0.125°C (default)

[D3:D0]

Reserved

Current Sensor (ISENSEx) High Limit Registers (Register 0x28

to Register 0x2B)

These read/write 16-bit registers set the high limits for the four

current sensor channels. The default value of these registers is

0xFFF0.

Table 58. VINx (Register 0x10 to Register 0x13) and ISENSEx High Limit Registers (Register 0x28 to Register 0x2B)

MSB

LSB

D15

D14

D13

D12

D11

D10

[D3:D0]

B11

B10

Reserved

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