LP55231 datasheet(24/59 Pages) TI2

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LP55231

SNOSCR5D – MARCH 2013 – REVISED DECEMBER 2016

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Table 3. Control Register Map (continued)

HEX

ADDRESS

BIT(s)

READ/

WRITE

DEFAULT VALUE

AFTER RESET

BIT MNEMONIC AND DESCRIPTION

MISC

[7]

R/W

0xxxxxxx

VARIABLE_D_SEL

Variable D source selection

[6]

R/W

x1xxxxxx

EN_AUTO_INCR

Serial bus address auto increment enable

[5]

R/W

xx0xxxxx

POWERSAVE_EN

Powersave mode enable

[4:3]

R/W

xxx00xxx

CP_MODE

Charge pump gain selection

[2]

R/W

xxxxx0xx

PWM_PS_EN

PWM cycle powersave enable

[1]

R/W

xxxxxx0x

CLK_DET_EN

External clock detection

[0]

R/W

xxxxxxx0

INT_CLK_EN

Clock source selection

ENGINE1 PC

[6:0]

R/W

x0000000

Program counter for engine 1

ENGINE2 PC

[6:0]

R/W

x0000000

Program counter for engine 2

ENGINE3 PC

[6:0]

R/W

x0000000

Program counter for engine 3

STATUS/INTERRUPT

[7]

0xxxxxxx

LEDTEST_MEAS_DONE

Indicates when the LED test measurement is

done.

[6]

x1xxxxxx

MASK_BUSY

Mask bit for interrupts generated by START-

UP_BUSY or ENGINE_BUSY.

[5]

xx0xxxxx

START-UP_BUSY

This bit indicates that the start-up sequence is

running.

[4]

xxx0xxxx

ENGINE_BUSY

This bit indicates that a program execution engine

is clearing internal registers.

[3]

xxxx0xxx

EXT_CLK_USED

Indicates when external clock signal is in use.

[2]

xxxxx0xx

ENG1_INT

Interrupt bit for program execution engine 1

[1]

xxxxxx0x

ENG2_INT

Interrupt bit for program execution engine 2

[0]

xxxxxxx0

ENG3_INT

Interrupt bit for program execution engine 3

INT/GPO

[2]

R/W

xxxxx0xx

INT_CONF

INT pin can be configured to function as a GPO

with this bit

[0]

R/W

xxxxxxx0

INT_GPO

GPO pin control for INT pin when INT_CONF is

set 1

VARIABLE

[7:0]

R/W

00000000

VARIABLE

Global 8-bit variable

RESET

[7:0]

R/W

00000000

RESET

Writing 11111111 into this register resets the

LP55231

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