ES51970(6000counts)
DMM Analog front end with Inrush
The read command includes one ID byte with ten data bytes. When DATA_NEW is ready1,
MPU could send the read data command to get the result of ADC conversion
(D0/D1/D2/D3)2 or status flag from ES51970.
The next table shows the content of read command.
Byte
ID
R1
R2
R3
R4
R5
R6
R7
Bit7
1
ASIGN
HF
D0:3
D0:11
D1:0
D1:8
D2:6
D2:14
D3:3
D3:11
Bit6
1
BSIGN
LF
D0:4
D0:12
D1:1
D1:9
D2:7
D2:15
D3:4
D3:12
Bit5
0
X
Bit4
0
X
Bit3
1
Bit2
0
Bit1
BUZ
STA0
D0:1
D0:9
D0:17
D1:6
D2:4
D2:12
D3:1
D3:9
D3:17
Bit0
R/W=1
ALARM
D0:2
D0:10
D0:18
D1:7
D2:5
D2:13
D3:2
BTS0
F_FIN
D0:7
D0:15
D1:4
D2:2
D2:10
D2:18
D3:7
D3:15
BTS1
D0:0
D0:8
D0:16
D1:5
D2:3
D2:11
D3:0
D3:8
D3:16
LDUTY
D0:5
D0:13
D1:2
D2:0
D2:8
D2:16
D3:5
D3:13
STA1
D0:6
D0:14
D1:3
D2:1
D2:9
D2:17
D3:6
D3:14
R8
R9
R10
D3:10
D3:18
1Note: DATA_NEW will be active with D1 data updated when one fast ADC (FADC) conversion finished. If
MCU access slow ADC output only, ten FADC conversion cycle delay is necessary. DATA_NEW for
frequency or capacitance mode will be active when D0 or D3 data ready.
2Note: D0/D1/D2/D3 all are binary code format. D0 is SADC output and D1 is FADC output
The ADC data output for measurement mode: F3/F2/F1/F0
F3
0
0
0
0
0
0
0
0
1
1
1
F2
0
0
0
0
1
1
1
1
0
0
0
F1
0
0
1
1
0
0
1
1
0
0
1
F0
0
1
0
1
0
1
0
1
0
1
0
Measurement mode
V mode
Read data bytes
D0(0:18), D1(0:9)
ACV + Hz mode
A mode
D0(0:18), D1(0:9), D3(0:18)
D0(0:18), D1(0:9)
ACA + Hz mode
Resistance mode
Continuity mode
Diode mode
D0(0:18), D1(0:9), D3(0:18)
D0(0:18), D1(0:9)
D0(0:18), D1(0:9)
D0(0:18), D1(0:9)
F + duty mode
D0(0:18), D2(0:18), D3(0:18)
Capacitance Mode D0(0:18)
ADP mode
D0(0:18), D1(0:9)
D0(0:18), D1(0:9), D3(0:18)
ADP + Hz mode
ver. 2.8
10
12/01/12
CYRUSTEK [ Cyrustek corporation ]
