L9788 datasheet(191/264 Pages) STMICROELECTRONICS

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DS12308 Rev 4

191/264

L9788

Micro second channel (MSC) interface

263

18.5.1

CONFIG-REG 1

[6:7] WAKE_UP_TIMER_START_STOP [0:1]

Start/stop Wake_up_timer counter

10: (stop)

wake up timer stops (default)

01: (start) → 10 (stop) wake up timer counter value hold

10: (stop) → 01 (start) wake up timer starts from h'000001

01: (start)

wake up timer counter is running

Application note: after a start/stop command 500us must be waited to have the command

be effective in the EOT clock domain.

[5] BOOST_EN

Boost enable.

1: enabled (default)

0: disabled

[4] LED2_PD_EN

Enable the pull down current (open load diagnosis not available) for LED2 driver

0: pull down current disabled (LED mode enabled) (default)

1: enable

[3] LED1_PD_EN

Enable the pull down current (open load diagnosis not available) for LED1 driver

0: pull down current disabled (LED mode enabled) (default)

1: enable

[2:1] PHOLD_TIME[1:0]

CONFIG-

REG 1

0 1 1 1 1 1

PHOLD_E

PHOLD_TIME[0:

LED1_

PD_EN

LED2_

PD_E

BOOS

T_EN

WAKE_UP_TIM

ER_START_ST

OP[0:1]

DEFAULT

RESET SOURCE

D0:D5

v3v3a_ov, v3v3a_uv, v3v3d_ov, v3v3d_uv, vdd5_uv, vddio_uv, sw_reset,

after_run_reset, RSTN_IN

D6:D7

the read bits are from satellite logic on VB_STBY and are not affected by

reset matrix

ACTIVATION

D0:D7 bits active as level

CONTROL ACCESS

not locked

bits

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