HT7M2136 datasheet(12/25 Pages) HOLTEK

12 / 25 page

Rev. 1.20

June 17, 2016

HT7M2126/27/36/56/76

1. Sensor Config Register – CONFIG

• Sensor Config Register → ADDRESS: 01H

Bit

Name

VLVD2

VLVD1

VLVD0

LVDEN

PirEN

D10

Trig mode

ACTEN

R/W

Bit

Name

Threshold2 Threshold1 Threshold0

PGAC4

PGAC3

PGAC2

PGAC1

PGAC0

R/W

Bit 15~13

VLVD2~VLVD0: Select LVD Voltage

000: 2.0V

001: 2.2V

010: 2.4V

011: 2.7V (Default)

100: 3.0V

101: 3.3V

110: 3.6V

111: 4.0V

Bit 12

LVDEN

1: Turn on the low voltage detection function (Default)

0: Turn off the low voltage detection function

Bit 11

PirEN

1: Enable PIR detect (Default)

0: Disable PIR detect

Bit 10

D10: Reserved bit

1: Not use, reserve for test mode

0: Not use, reserve for test mode (Default)

Bit 9

Trig mode

1: Continuous trigger (Default)

0: Single trigger

Bit 8

ACTEN

1: Enable ACT pin function (Default)

0: Disable ACT pin function

Bit 7~5

Threshold2~Threshold0

000: Threshold Trigger 1 (offset ± 0.2), (Default)

001: Threshold Trigger 2 (offset ± 0.3)

010: Threshold Trigger 3 (offset ± 0.4)

011: Threshold Trigger 4 (offset ± 0.5)

100: Threshold Trigger 5 (offset ± 0.6)

101: Threshold Trigger 6 (offset ± 0.7)

110: Threshold Trigger 7 (offset ± 0.8)

111: Threshold Trigger 8 (offset ± 0.9)

Note: lower sensitivity when at high threshold trigger.

Bit 4~0

PGAC4~PGAC0

OPA2GainControl:gain=32+(PGAC×2),Defaultgain=64

Note:Highersensitivitywhenathighmagnification

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