LP5523 datasheet(22/56 Pages) TI1

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LP5523

SNVS550D – SEPTEMBER 2009 – REVISED MAY 2013

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Table 3. Control Register Map (continued)

Hex

Read/

Default Value

Bit(s)

Bit Mnemonic and Description

Address

Write

After Reset

LEDTEST_MEAS_DONE

[7]

0xxxxxxx

Indicates when the LED test measurement is done.

MASK_BUSY

[6]

x1xxxxxx

Mask bit for interrupts generated by

STARTUP_BUSY or ENGINE_BUSY.

STARTUP_BUSY

[5]

xx0xxxxx

This bit indicates that the startup sequence is

running.

ENGINE_BUSY

[4]

xxx0xxxx

This bit indicates that a program execution engine

STATUS/INTERRUPT

is clearing internal registers.

EXT_CLK_USED

[3]

xxxx0xxx

Indicates when external clock signal is in use.

ENG1_INT

[2]

xxxxx0xx

Interrupt bit for program execution engine 1

ENG2_INT

[1]

xxxxxx0x

Interrupt bit for program execution engine 2

ENG3_INT

[0]

xxxxxxx0

Interrupt bit for program execution engine 3

INT_CONF

[2]

R/W

xxxxx0xx

INT pin can be configured to function as a GPO

with this bit

GPO

[1]

R/W

xxxxxx0x

GPO pin control

INT_GPO

[0]

R/W

xxxxxxx0

GPO pin control for INT pin (when INT_CONF is set

"1")

VARIABLE

[7:0]

R/W

00000000

Global 8-bit variable

RESET

[7:0]

R/W

00000000

Writing 11111111 into this register resets the

LP5523

TEMP_MEAS_BUSY

[7]

0xxxxxxx

Indicates when temperature measurement is active

EN_TEMP_SENSOR

[2]

R/W

xxxxx0xx

Reads the internal temperature sensor once

TEMP ADC CONTROL

CONTINUOUS_CONV

[1]

R/W

xxxxxx0x

Continuous temperature measurement selection

SEL_EXT_TEMP

[0]

R/W

xxxxxxx0

Internal/external temperature sensor selection

TEMPERATURE

TEMPERATURE READ

[7:0]

00011001

Bits for temperature information

TEMPERATURE

TEMPERATURE WRITE

[7:0]

R/W

00000000

Bits for temperature information

[7]

R/W

0xxxxxxx

EN_LED_TEST_ADC

[6]

R/W

x0xxxxxx

EN_LED_TEST_INT

CONTINUOUS_CONV

LED TEST CONTROL

[5]

R/W

xx0xxxxx

Continuous LED test measurement selection

LED_TEST_CTRL

[4:0]

R/W

xxx00000

Control bits for LED test

LED_TEST_ADC

LED TEST ADC

[7:0]

N/A

LED test result

RESERVED

[7:0]

RESERVED FOR FUTURE USE

RESERVED

[7:0]

RESERVED FOR FUTURE USE

ENGINE1 VARIABLE A

[7:0]

00000000

VARIABLE FOR ENGINE1

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