Data Sheet
AD5940
Switch Matrix Full Configuration Dx/DR0 Register—DSWFULLCON
Address 0x00002150, Reset: 0x00000000, Name: DSWFULLCON
The DSWFULLCON register allows individual control of the Dx/DR0 switches. The bit names are the same as the switch names shown in
Figure 33.
Table 83. Bit Descriptions for DSWFULLCON Register
Bits
[31:8]
7
Bit Name Settings Description
Reset Access
Reserved
D8
Reserved.
0x0
0x0
R
R/W
Control of the D8 switch. This bit connects the D-node of the excitation amplifier to the
AFE3 pin.
0
1
Switch open.
Switch closed.
6
D7
Control of the D7 switch. This bit connects the D-node of the excitation amplifier to the
SE0 pin.
0x0
R/W
0
1
Switch open.
Switch closed.
Reserved.
5
4
Reserved
D5
0x0
0x0
R/W
R/W
Control of the D5 switch. This bit connects the data out node of the excitation amplifier
to the CE0 pin.
0
1
Switch open.
Switch closed.
3
2
1
0
D4
Control of the D4 switch. This bit connects the data out node of the excitation amplifier
to the AIN3 pin.
Switch open.
Switch closed.
0x0
0x0
0x0
0x0
R/W
R/W
R/W
R/W
0
1
D3
Control of the D3 switch. This bit connects the data out node of the excitation amplifier
to the AIN2 pin.
Switch open.
Switch closed.
0
1
D2
Control of the D2 switch. This bit connects the data out node of the excitation amplifier
to the AIN1 pin.
Switch open.
Switch closed.
0
1
DR0
Control of the DR0 switch. This bit connects the data out node of the excitation amplifier
to the RCAL0 pin.
0
1
Switch open.
Switch closed.
Switch Matrix Full Configuration Nx/Nxx Register—NSWFULLCON
Address 0x00002154, Reset: 0x00000000, Name: NSWFULLCON
The NSWFULLCON register allows individual control of the Nx/Nxx switches. The bit names are the same as the switch names shown in
Figure 33.
Table 84. Bit Descriptions for NSWFULLCON Register
Bits
Bit Name
Settings Description
Reset Access
[31:12] Reserved
Reserved.
0x0
0x0
R
11
10
NL2
NL
Control of the NL2 switch. If this bit is set, NL2 is closed. If this bit is not set, NL2 is open.
Switch open.
Switch closed.
Control of the NL switch. If this bit is set, NL is closed. If this bit is not set, NL is open. This 0x0
bit shorts the negative node of the excitation amplifier to the inverting input of the
high speed TIA.
R/W
0
1
R/W
0
1
Switch open.
Switch closed.
Rev. 0 | Page 73 of 130
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