GS2986 Datasheet, PDF (34/41 Pages) Gennum Corporation – Standards indication in Auto mode

Table 4-11: Host Register Map (Continued)
Register Register
Bit
Name Address Position
DRIVER_1
0x01
15:10
9
Access
RW
RW
Function
Unused
Amplitude Control for DDO1
8
RW
Amplitude Control for DDO0
7:5
RW
De-Emphasis Boost Amplitude
Control for DDO1
4:2
RW
De-Emphasis Boost Amplitude
Control for DDO0
1
0
TOP_1
0x02
15:9
8:7
RW
De-Emphasis Enable for DDO1
RW
De-Emphasis Enable for DDO0
RW
Reserved.
RW
LOS Threshold Adjust
6:5
RW
LOS Detection Method Select
4
RW
LOS Mute Enable
3
RW
Power Down
2
RW
Tri-State Enable for SPI Output
Default Valid
Value Range
Comments
0x0
0 or 1
−
0x1
0 or 1 0 = 800mV swing
1 = 400mV swing
0x1
0 or 1 0 = 800mV swing
1 = 400mV swing
0x2
0x0 to
0x0 = Lowest
0x7
Setting
0x7 = Highest
Setting
0x2
0x0 to
0x0 = Lowest
0x7
Setting
0x7 = Highest
Setting
0x0
0 or 1
1 = Enabled
0 = Disabled
0x0
0 or 1
1 = Enabled
0 = Disabled
0x0
0x0 to
0x3
0x0 = least
sensitive
0x3 = most
sensitive
0x0
0x0 to 0x0 = legacy edge
0x2 detectionmethod
0x1 = new signal
strength
detectionmethod
0x2 = dual
detection
method: both
must say signal
present for LOS to
be LOW
0x0
0 or 1
When enabled
the output will
automatically
mute if Loss of
Signal is HIGH
0x0
0 or 1
Chip powers
down when
asserted
0x0
0 or 1
When enabled
the SPI SDO will
be high Z when
CS is not selected
GS2986 Multi-Rate SDI Reclocker with Equalization &
De-emphasis
Data Sheet
52134 - 3
July 2012
34 of 41