Si3056
Si3018/19/10
Register 32-37. Reserved
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
Type
Reset settings = 0000_0000
Bit Name
7:0 Reserved Read returns zero.
Function
Register 38. TX Gain Control 2 (Si3019 Line-Side Device Only)
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
Type
TGA2
R/W
TXG2[3:0]
R/W
Reset settings = 0000_0000
Bit Name
7:5 Reserved Read returns zero.
TGA2 Transmit Gain or Attenuation 2.
Function
4
0 = Incrementing the TXG2[3:0] bits results in gaining up the transmit path.
1 = Incrementing the TXG2[3:0] bits results in attenuating the transmit path.
3:0 TXG2[3:0] Transmit Gain 2.
Each bit increment represents 1 dB of gain or attenuation, up to a maximum of +12 dB
and –15 dB respectively.
For example:
TGA2
TXG2[3:0]
Result
X
0
0
0
1
1
1
0000
0001
:
0 dB gain or attenuation is applied to the transmit path.
1 dB gain is applied to the transmit path.
11xx
0001
:
12 dB gain is applied to the transmit path.
1 dB attenuation is applied to the transmit path.
1111
15 dB attenuation is applied to the transmit path.
Rev. 1.05
73
SILICON [ SILICON ]
