L99ASC03 datasheet(59/73 Pages) STMICROELECTRONICS

Part #	L99ASC03

Description	Brushless / sensorless 3-phase motor pre-driver for automotive applications

PDF	73 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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59 / 73 page

DocID023504 Rev 7

59/73

L99ASC03

ST-SPI Protocol

4.4.6

Device Control Register 5

Address:

0x5

Type:

R/W

Bit name

DMUX

AMUX(2)

AMUX(1)

AMUX(0)

WOBM

WOBF

Reserved

Default values

Bit Bit description

[7] DMUX: digital multiplexer output

0: FS flag selected

1: OC flag selected. In case the OCFT_DIS bit in Control Register 8 is "1", then the DOUT pin

reflects directly the overcurrent comparator output and the CSAOC bit in Status Register 6 is not

set if an overcurrent event occurs.

[6:4] AMUX: analog multiplexer output

000: OFF

001: 1/8 VS

010: 1/8 VSREG

011: 1/8

VSMS

100: TJ

101: CSA reference voltage

110: CSA reference voltage is muxed to AOUT and CSO pins at the same time

111: not used

[3] WOBM: charge pump frequency modulation

0: frequency modulation enabled

1: frequency modulation disabled

[2] WOBF: charge pump modulation frequency

0: 16 kHz

1: 32 kHz

[1] Reserved, keep default value [0]

[0] Reserved

L99ASC03 Datasheet(PDF) 59 Page - STMicroelectronics

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