L9663 datasheet(75/106 Pages) STMICROELECTRONICS

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DS11401 Rev 6

75/106

L9663

Communication interface

105

ADVSET1 (PROG)

Advanced Settings 1

Address:

101110

Type:

R/W

Description:

Advanced settings for interface 1

Default value:

010

000

R/W

[15] STG_MASK: Short to ground does not switch off channel

0: short to ground switches off the channel after filter time

1: short to ground does NOT switch off the channel

[14:11] FIXED_THR_SEL: Fixed threshold setting for PSI5 channel 1

Ibase + 5.5mA + (15-5.5)/16*bits[14:11]mA (1)

[10] RESERVED

[9] TRACKING_SEL

0: Standard threshold tracking algorithm (default, recommended)

1: Fast tracking algorithm

[8:7] BLANKING_SEL: Blanking time selector at sensor startup:

00/11 : 128 µs

01 : 5 ms

10: 10 ms

[6:3] DATA_FILT_SEL: Deglitch filter adjust

Baud rate = 189K: filter time = (16 + <DATA_FILT_SEL>) * Tosc

Baud rate = 125K or 83.3K: filter time = (24 + <DATA_FILT_SEL>) * Tosc

Note:Tosc is the period of the 16 MHz oscillator

[2] FREEZE_DIS: Freezing of base current tracking after start bits are detected

0: frozen

1: not frozen

[1] RESERVED

[0] FIXED_THR: Adaptive / fixed threshold

0: adaptive threshold

1: fixed threshold

1. The selectable threshold is in the range: Ibase+5.5 mA to Ibase+14.4 mA

L9663 Datasheet(PDF) 75 Page - STMicroelectronics

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