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Subject to Change
VSC7111 Datasheet
Registers
3.4.1
Global MUX Select
This register selects input/output connections.
Table 26.
Register 50’h: Global MUX Select
Bit Name
Access Description
Default
0000
7:4 Unused
3:0 GMUXSEL
R
Unused
R/W
Global MUX selects
1010
0000–1111: Selects for the 2:1 MUX in front of
each output
1: Select the odd output
0: Select the even output
See Table 1, page 12.
3.4.2
Global Input Gain 1
This register defines the first main amplifier gain settings for the selected input.
Table 27.
Register 51’h: Global Input Gain 1
Bit Name
Access Description
Default
000
7:5 Unused
4:0 GINPGAIN1
R
Unused
R/W
Main input amplifier gain 1
11111: Maximum gain
…
11111
00010010: Minimum gain
00001001: Vitesse use only
00000: Off minimum
3.4.3
Global Input Gain 2
This register defines the second main amplifier gain settings for the selected input.
Table 28.
Register 52’h: Global Input Gain 2
Bit Name
Access Description
Default
000
7:5 Unused
4:0 GINPGAIN2
R
Unused
R/W
Main input amplifier gain 2
11111: Maximum gain
…
11111
00010010: Minimum gain
00001001: Vitesse use only
00000: Off minimum
Revision 2.0
September 2010
Confidential
Page 35
VITESSE [ VITESSE SEMICONDUCTOR CORPORATION ]
