Datasheet

LMP92001

www.ti.com

SNAS507B –FEBRUARY 2011–REVISED APRIL 2012

Bx Name Function

0 - RESERVED, must be 1

DATA REGISTERS

All registers in this section require 16-bit I

C-compatible data transaction for both read and write operations.

However, only lower 12 bits are stored. All data is assumed to be in the unsigned binary format, where the

lowest value is represented by 0x000 and the highest value is represented by 0xFFF.

ADC Output Data Register: ADCx[15:0], default 0x0000

The ADCx registers, x = 1...16, contain results of the most recent ADC conversion cycle. Accessing these

registers does not preempt the Analog Sense Subsystem sequencing. Enabling/Disabling of the ADC input

channels via CADx registers does not affect the ADCx content.

Bx Name Function

15:12 - Always 0

11:0 - 12-bit binary representing the ADC conversion result

ADC High-Limit Register: LIHx[15:0], default 0x0FFF

The LILx registers, x=1...3 and 9...11, contain the HIGH LIMIT threshold of the window comparator function of

the Analog Sense Subsystem.

Bx Name Function

15:12 - Always 0. Data written to this location will be discarded.

11:0 - Window comparator upper limit.

ADC Low-Limit Register: LILx[15:0], default 0x0000

The LILx registers, x=1...3 and 9...11, contain the LOW LIMIT threshold of the window comparator function of the

Analog Sense Subsystem.

Bx Name Function

15:12 - Always 0. Data written to this location will be discarded.

11:0 - Window comparator lower limit.

DAC Data Register: DACx[15:0], default 0x0000

The DACx registers, x=1...12, are input code registers. Updating the DACx register automatically updates the

VOUTx of the corresponding DAC. Note that OUTx may not update due to the state of the asynchronous control

inputs C[1:4]. (See Asynchronous Output Control.)

Bx Name Function

15:12 - Always 0. Data written to this location will be discarded.

11:0 - DACx input data.

Write all DAC's Data Register: DALL[15:0], default 0x0000

Writing to this register updates all DACx registers simultaneously to this value. Note that OUTx may not update

due to the state of the asynchronous control inputs C[1:4].

Bx Name Function

15:12 - Always 0. Data written to this location will be discarded.

11:0 - DAC input data.

Product Folder Links: LMP92001