LMP92066PWPR datasheet(33/63 Pages) TI1

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LMP92066

www.ti.com

SNAS634B – MARCH 2014 – REVISED JANUARY 2016

ACCESS

ADDRESS

NAME

BIT

FUNCTION

DESCRIPTION

TYPE

LEVEL

0x04

DAC1M

7:4

Reserved bit. Always report as 0.

3:0

DAC[11:8]

4-bit MSB nibble of the 12-bit DAC1 input word.

ACCESS

ADDRESS

NAME

BIT

FUNCTION

DESCRIPTION

TYPE

LEVEL

0x05

DAC1L

7:0

TEMP[7:0]

8-bit LSB byte of the 12-bit DAC1 input word.

8.5.3 Temperature Sensor Status Register

This register may contain non-zero values immediately after the device power up. Within 100 ms of the power up

the TEMP_STATUS register clears, indicating the temperature sensor’s output is valid.

ACCESS

ADDRESS

NAME

BIT

FUNCTION

DESCRIPTION

TYPE

LEVEL

If RDYB=0x00, the Temperature Sensor is initialized

0x07

TEMP_STATUS

7:0

RBYB

and producing valid output.

8.5.4 Override Control Register

Override functionality allows the user to insert external data into the signal path of the device. When TEMP

override is enabled, the temperature sensor’s data is ignored, and the user-supplied data is used to index the

LUT (TEMPM_OVRD and TEMPL_OVRD, below). When DAC override is enabled the LUT and ALU produced

output is ignored, and both DAC0 and DAC1 use external data as their inputs (DAC0M_OVRD, DAC0L_OVRD

and DAC1M_OVRD and DAC1L_OVRD described below).

NOTE

Only 3 OVRD_CNTL[2:0] settings are allowed: 0x0, 0x1, 0x2; simultaneous DAC and

TEMP override is not allowed.

ACCESS

ADDRESS

NAME

BIT

FUNCTION

DESCRIPTION

TYPE

LEVEL

7:4

Reserved bit. Always WRITE 0

RES

Reserved bit. Always WRITE 0

RES

Reserved bit. Always WRITE 0

DAC override enable bit:

0: DAC input generated by LUT

DAC

0x08

OVRD_CNTL

R/W

1: DAC input is supplied from user accessible

registers DACxy_OVRD.

DAC override enable bit:

0: DAC input generated by LUT

TEMP

1: DAC input is supplied from user accesible

registers TEMPy_OVRD.

8.5.5 Override Data Registers

These registers hold the externally supplied data to be inserted into the signal path of the device (see

OVRD_CNTL).

NOTE

Since override data are 12-bit words stored in 2 adjacent registers, it is the writing of the

lower byte that makes the new value take effect.

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