Data Sheet
AD5940
PROGRAMMABLE SWITCHES REGISTERS
Table 81. Programmable Switch Matrix Registers Summary
Address
Name
Description
Reset
Access
R/W
R/W
R/W
R/W
R/W
R
R
R
R
0x0000200C
0x00002150
0x00002154
0x00002158
0x0000215C
0x000021B0
0x000021B4
0x000021B8
0x000021BC
SWCON
Switch matrix configuration
0x0000FFFF
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
0x00000000
DSWFULLCON
NSWFULLCON
PSWFULLCON
TSWFULLCON
DSWSTA
PSWSTA
NSWSTA
TSWSTA
Switch matrix full configuration (Dx/DR0)
Switch matrix full configuration (Nx/Nxx)
Switch matrix full configuration (Px/Pxx)
Switch matrix full configuration (Tx/TR1)
Switch matrix status (Dx/DR0)
Switch matrix status (Px/Pxx)
Switch matrix status (Nx/Nxx)
Switch matrix status (Tx/TR1)
Switch Matrix Configuration Register—SWCON
Address 0x0000200C, Reset: 0x0000FFFF, Name: SWCON
This register allows configuration of the switch matrix.
Table 82. Bit Descriptions for SWCON Register
Bits
Bit Name
Settings
Description
Reset Access
[31:19] Reserved
Reserved.
Control of the T10 switch.
T10 closed.
T10 open.
Control of the T9 switch.
T9 closed.
0x0
0x0
R
R/W
18
17
16
T10CON
1
0
T9CON
0x0
0x0
R/W
R/W
1
0
T9 open.
SWSOURCESEL
Switch control select. This bit selects the registers to control the
programmable switches.
1
0
Switch control source. Switches controlled by DSWFULLCON, TSWFULLCON,
PSWFULLCON, and NSWFULLCON registers.
Dx/DR0, Tx/TR1, Px/Pxx, and Nx/Nxx switches controlled as groups.
Switches controlled as groups via the SWCON register.
[15:12] TMUXCON
Control of the Tx/TR1 switch mux. Does not include control of the T9 or T10 0xF
switch.
R/W
0000 All switches open.
0001 T1 closed, remaining switches open.
0010 T2 closed, remaining switches open.
0011 T3 closed, remaining switches open.
0100 T4 closed, remaining switches open.
0101 T5 closed, remaining switches open.
0110 T6 closed, remaining switches open.
0111 T7 closed, remaining switches open.
1000 TR1 closed, remaining switches open.
1001 All switches closed.
1010 to 1111 All switches open.
Rev. 0 | Page 71 of 130
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