AD7194
ON-CHIP REGISTERS
The ADC is controlled and configured via a number of on-chip registers that are described on the following pages wherein the term, set,
implies a Logic 1 state and cleared implies a Logic 0 state, unless otherwise noted.
Table 15. Register Summary
Register
Addr.
Communications
00
Status
00
Mode
01
Configuration
02
Data
03
ID
04
GPOCON
05
Offset
06
Full Scale
07
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Bit 7
W
00
0
R
80
RDY
R/W
080060
Mode select
SINC3
FS7
R/W
000117
Chop (MSB)
CH7(
Burn
R
000000
D23 (MSB)
D15
D7
R
X3
X
R/W
00
0
R/W
800000
OF23 (MSB)
OF15
OF7
R/W
5XXXX0
FS23 (MSB)
FS15
FS7
Bit 6
Bit 5
Bit 4
R/W
Register address
ERR
NOREF
Parity
DAT_STA
0
ENPAR
CLK_DIV
FS6
FS5
FS4
0
0
REFSEL
CH6
CH5
CH4
REFDET
0
BUF
D22
D21
D20
D14
D13
D12
D6
D5
D4
X
X
X
0
GP32EN
GP10EN
OF22
OF21
OF20
OF14
OF13
OF12
OF6
OF5
OF4
FS22
FS21
FS20
FS14
FS13
FS12
FS6
FS5
FS4
Rev. 0 | Page 18 of 56
Bit 3
Bit 2
Bit 1
Bit 0
CREAD
0
0
CHD3
CHD2
CHD1
CHD0
CLK1
CLK0
AVG1
AVG0
Single
REJ60
FS9
FS8
FS3
FS2
FS1
FS0 (LSB)
0
Pseudo
0
TEMP
CH3
CH2
CH1
CH0
U/B
G2
G1
G0 (LSB)
D19
D18
D17
D16
D11
D10
D9
D8
D3
D2
D1
D0 (LSB)
0
0
1
1
P3DAT
P2DAT
P1DAT
P0DAT
OF19
OF18
OF17
OF16
OF11
OF10
OF9
OF8
OF3
OF2
OF1
OF0 (LSB)
FS19
FS18
FS17
FS16
FS11
FS10
FS9
FS8
FS3
FS2
FS1
FS0 (LSB)
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