ES51997(60000counts)
DMM Analog front end
Buzzer frequency selection: B2/B1/B0
B2
0
0
0
0
1
1
1
1
B1
0
0
1
1
0
0
1
1
B0
0
1
0
1
0
1
0
1
Buzzer frequency
1.00kHz
1.33kHz
2.00kHz
2.22kHz
2.67kHz
3.08kHz
3.33kHz
4.00kHz
Set B2-B0 properly to get the target frequency. Use BUZ control bit to enable/disable the
BUZOUT (pin82) driver output. If MPU control BUZ only, it is available to set ID byte with
ending of stop bit.
A
C
K
R
/W
START BIT
START BIT
1
1
0
0
1
0
0
STOP BIT
STOP BIT
Buzzer OFF
R
/W
1
1 0 0 1 0 1
Buzzer ON
ver. 1.7
11
12/01/12
CYRUSTEK [ Cyrustek corporation ]
