Rxfer[9:0]; Rxflcpi[1:0]; Biasen; Txanaen - Xilinx RocketIO X User Manual

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RXFER[9:0]

RXFER[9:0] sets the equalization in the receiver front end/equalizer, based on the
adjustment of four basic boosts in four different frequency ranges. For details, see
Equalization" in Chapter 4

RXFLCPI[1:0]

RXFLCPI[1:0] sets the fine loop charge pump current. The default is 00 (40 µA). The
receiver fine loop charge pump current is defined as follows:

Table C-38: RXFLCPI[1:0] Definition

BIASEN

BIASEN enables and disables the MGT bias, including bandgap, V-to-I and clock
management. The default is 1 (Enabled). The bias control is defined as follows:

Table C-39: BIASEN Definition

TXANAEN

TXANAEN enables and disables the transmit analog voltage regulator. The default is 1
(Enabled). For proper operation, the bias must also be enabled. The transmit analog
regulator control is defined as follows:
Table C-40:
162
in the
RXFLCPI[1:0]
00
01
10
11
BIASEN
0
1
TXANAEN Definition
TXANAEN
0
1
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Appendix C: PMA Attribute Programming Bus
RocketIO X Transceiver User Guide.
RX Fine Loop CP Current
40 µA (Default)
80 µA
20 µA
60 µA
Bias
Disabled
Enabled (Default)
TX Analog Regulator
Disabled
Enabled (Default)
RocketIO™ X Transceiver User Guide
UG035 (v1.5) November 22, 2004
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