AMC7832 Datasheet, PDF (43/70 Pages) Texas Instruments – AMC7832 12-Bit Analog Monitor and Control Solution with Multi-Channel ADC, Bipolar DACs, Temperature Sensor and GPIO Ports

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AMC7832
SLAS836 – MARCH 2014
8.5.1 Interface Configuration: Address 0x00 – 0x02
Table 6. Register name: Interface Configuration 0 – Address: 0x00, Default: 0x3C (READ/WRITE)
REGISTER
NAME
Interface
Config 0
ADDRESS
0x00
BIT NAME
DESCRIPTION
DEFAULT
VALUE
7
SOFT-RESET Soft reset (self-clearing)
0
0: no action
1: reset – resets everything except address 0x00, 0x01
6
LSB-ORDER
LSB First
0
0: MSB first
1: LSB first
5
ADDR-ASCEND Address Ascend
1
0: Descend – decrements address while streaming (address
wrap from 0x0000 to 0x7FFF)
1: Ascend – increments address while streaming (address wrap
from 0x7FFF to 0x0000)
4
Reserved
Reserved for factory use
1
3:0 REVERSE-
CONFIG
Bits 3:0 should always mirror bits 7:4 so that it does not matter
0xC
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)
REGISTER
NAME
Interface
Config 1
ADDRESS
0x01
BIT NAME
DESCRIPTION
7
SINGLE-INSTR Single instruction enable
0: streaming mode (default)
1: single instruction
6
Reserved
Reserved for factory use
5
READBACK
Read back
0: DAC read back from active registers (default)
1: DAC read back from buffer registers
4
Reserved
Reserved for factory use
3
Reserved
Reserved for factory use
2
Reserved
Reserved for factory use
1
Reserved
Reserved for factory use
0
Reserved
Reserved for factory use
DEFAULT
VALUE
0
0
0
0
0
0
0
0
Table 8. Register name: Device Configuration – Address: 0x02, Default: 0x03 (READ/WRITE)
REGISTER
NAME
Device
Config
ADDRESS
0x02
BIT NAME
DESCRIPTION
DEFAULT
VALUE
7:2 Reserved
Reserved for factory use
All zeros
1:0 POWER-MODE Mode:
11
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)
REGISTER
NAME
Chip Type
ADDRESS
0x03
BIT NAME
7:4 Reserved
3:0 CHIP-TYPE
DESCRIPTION
Reserved for factory use
Identifies the device as a precision analog monitor and control
DEFAULT
VALUE
0x0
0x8
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