m21330 Mindspeed Technologies, m21330 Datasheet - Page 15

• Manufacturer Part Number: m21330
• Description: 4.25 Gbps Quad-channel Cable Driver And Adaptive Equalizer With 4x4 Crosspoint Switch
• Manufacturer: Mindspeed Technologies

Address 05h—Input 3-2 Manual Equalization Setting
Address 06h, 07h, 08h, 09h—Output Buffer Control
(add 06h = output 0, add 07h = output 1, add 08h = output 2, add 09h = output 3)
21330-DSH-001-B
[7:4]
[3:0]
[7:5]
[3:2]
Bits
Bits
4
1
0
RSVD
RSVD
Type
Type
R/W
R/W
R/W
R/W
R/W
Default
Default
0111
0111
011
00
0
0
0
MSPD
de_freq
MSPD
eqlvl3
eqlvl2
outlvl
delvl
Label
Label
Mindspeed Technologies
1111: Minimum equalization
1110: Low equalization
....
....
1000: Medium equalization
0000: Medium equalization
....
0110: High equalization
0111: Maximum equalization
Input equalization is programmed using 2's complement encoding, with 111 being the
lowest eq setting and 0111 being the highest eq setting.
1111: Minimum equalization
1110: Low equalization
....
....
1000: Medium equalization
0000: Medium equalization
....
0110: High equalization
0111: Maximum equalization
Input equalization is programmed using 2's complement encoding, with 111 being the
lowest eq setting and 0111 being the highest eq setting.
Sets the swing level for the output buffer.
00x: Power Down
...
010: Minimum Output Swing
...
111: Maximum Output Swing
Reserved, set to 0
Controls output de-emphasis.
00: Output de-emphasis disabled.
01: Approximately 2 dB de-emphasis.
10: Approximately 4 dB de-emphasis.
11: Approximately 6 dB de-emphasis.
0: Nominal time constant for output de-emphasis.
1: High time constant for output de-emphasis.
Reserved, set to 0.
Control Registers Map and Descriptions
®
Description
Description
15