AMC7832IPAPR datasheet(43/74 Pages) TI2

43 / 74 page

AMC7832

www.ti.com

SLAS836 – MARCH 2014

8.5.1 Interface Configuration: Address 0x00 – 0x02

Table 6. Register name: Interface Configuration 0 – Address: 0x00, Default: 0x3C (READ/WRITE)

DEFAULT

ADDRESS

BIT

NAME

DESCRIPTION

NAME

VALUE

Interface

0x00

SOFT-RESET

Soft reset (self-clearing)

Config 0

0: no action

1: reset – resets everything except address 0x00, 0x01

LSB-ORDER

LSB First

0: MSB first

1: LSB first

ADDR-ASCEND

Address Ascend

0: Descend – decrements address while streaming (address

wrap from 0x0000 to 0x7FFF)

1: Ascend – increments address while streaming (address wrap

from 0x7FFF to 0x0000)

Reserved

Reserved for factory use

3:0

REVERSE-

Bits 3:0 should always mirror bits 7:4 so that it does not matter

0xC

CONFIG

whether the part is in MSB or LSB first mode. Bits should be set

as follows:

Bit 0 = Bit 7

Bit 1 = Bit 6

Bit 2 = Bit 5

Bit 3 = Bit 4

Table 7. Register name: Interface Configuration 1 – Address: 0x01, Default: 0x00 (READ/WRITE)

DEFAULT

ADDRESS

BIT

NAME

DESCRIPTION

NAME

VALUE

Interface

0x01

SINGLE-INSTR

Single instruction enable

Config 1

0: streaming mode (default)

1: single instruction

Reserved

Reserved for factory use

READBACK

Read back

0: DAC read back from active registers (default)

1: DAC read back from buffer registers

Reserved

Reserved for factory use

Reserved

Reserved for factory use

Reserved

Reserved for factory use

Reserved

Reserved for factory use

Reserved

Reserved for factory use

Table 8. Register name: Device Configuration – Address: 0x02, Default: 0x03 (READ/WRITE)

DEFAULT

ADDRESS

BIT

NAME

DESCRIPTION

NAME

VALUE

Device

0x02

7:2

Reserved

Reserved for factory use

All zeros

Config

1:0

POWER-MODE

Mode:

00: Normal operation – full power and full performance

11: Sleep – lowest power, non-operational except SPI One time

overwrite of the power-down registers (0xB2 and 0xB3)

8.5.2 Device Identification: Address 0x03 – 0x0D

Table 9. Register name: Chip Type – Address: 0x03, Default: 0x08 (READ ONLY)

DEFAULT

ADDRESS

BIT

NAME

DESCRIPTION

NAME

VALUE

Chip Type

0x03

7:4

Reserved

Reserved for factory use

0x0

3:0

CHIP-TYPE

Identifies the device as a precision analog monitor and control

0x8

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