Ver 1.5

17/03/29

8

ES166

LCR/DMM analog front

The ADC data output for measurement mode: F3/F2/F1/F0

F3

F2

F1

F0

Measurement mode

Read data bytes

0

0

0

0

V mode/ VHz mode

D0(12-00), D1(19-00), D2(19-00)

0

0

0

1

A mode / AHz mode

D0(12-00), D1(19-00), D2(19-00)

0

0

1

0

Resistance mode

D0(12-00)

0

0

1

1

Continuity mode

D0(12-00)

0

1

0

0

Diode check mode

D0(12-00)

0

1

0

1

Frequency/Duty cycle D1(19-00), D2(19-00)

0

1

1

0

LC impedance mode

A(31-00),B(31-00),C(31-00)

0

1

1

1

ADP1/ Hz mode

D0(12-00), D1(19-00), D2(19-00)

1

0

0

0

ADP2 mode

D0(12-00)

Buzzer frequency selection: B2/B1/B0

B2

B1

B0

Buzzer frequency

0

0

0

1.00kHz

0

0

1

1.33kHz

0

1

0

2.00kHz

0

1

1

2.22kHz

1

0

0

2.67kHz

1

0

1

3.08kHz

1

1

0

3.33kHz

1

1

1

4.00kHz

Set B2-B0 properly to get the target frequency. Set BUZ control bit or drive BUZIN

(pin 15) to enable/disable the BUZOUT (pin12) driver output. If MCU control BUZ

only, it is available to set ID byte with ending of stop bit.

A

C

K

1

1

0

1

0

0

0

START BIT

STOP BIT

R

/W

Buzzer OFF

A

C

K

1

1

0

1

0

0

0

START BIT

STOP BIT

R

/W

Buzzer OFF

1

1

1

1

0

0

0

START BIT

STOP BIT

R

/W

Buzzer ON

1

1

1

1

0

0

0

START BIT

STOP BIT

R

/W

Buzzer ON