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Ixiasoft
Visible to Intel only — GUID: nik1398984276755
Ixiasoft
17.8. Transceiver Reconfiguration Controller PMA Analog Control Registers
You can use the Transceiver Reconfiguration Controller to reconfigure the following analog controls:
- Differential output voltage (VOD)
- Pre-emphasis taps
- Receiver equalization control
- Receiver equalization DC gain
- Reverse serial loopback
Reconfig Addr | Bits | R/W | Register Name | Description |
---|---|---|---|---|
7’h08 | [9:0] | RW | logical channel number | The logical channel number. Must be specified when performing dynamic updates. The Transceiver Reconfiguration Controller maps the logical address to the physical address. |
7’h0A | [9] | R | control and status | Error. When asserted, indicates an error. This bit is asserted if any of the following conditions occur:
|
[8] | R | Busy. When asserted, indicates that a reconfiguration operation is in progress. | ||
[1] | W | Read. Writing a 1 to this bit triggers a read operation. | ||
[0] | W | Write. Writing a 1 to this bit triggers a write operation. | ||
7’h0B | [5:0] | RW | pma offset | Specifies the offset of the PMA analog setting to be reconfigured. Table 326 describes the valid offset values. |
7’h0C | [6:0] | RW | data | Reconfiguration data for the PMA analog settings. Refer to Table 326 for valid data values. |
Refer to the Arria V Device Datasheet, the Cyclone V Device Datasheet, or the Stratix V Device Datasheet for more information about the electrical characteristics of each device. The final values are currently pending full characterization of the silicon.
Offset | Bits | R/W | Register Name | Description |
---|---|---|---|---|
0x0 | [5:0] | RW | VOD | VOD. The following encodings are defined:
|
0x1 | [4:0] | RW | Pre-emphasis pre-tap | The following encodings are defined:
|
0x2 | [4:0] | RW | Pre-emphasis first post-tap | The following encodings are defined:
|
0x3 | [4:0] | RW | Pre-emphasis second post-tap | The following encodings are defined:
|
0x10 | [2:0] | RW | RX equalization DC gain18 | The following encodings are defined:
|
0x11 | [3:0] | RW | RX equalization control | The following encodings are defined:
|
0x20 | [0] | WO | Pre-CDR Reverse Serial Loopback | Writing a 1 to this bit enables reverse serial loopback. Writing a 0 disables pre-CDR reverse serial loopback. |
0x21 | [0] | WO | Post-CDR Reverse Serial Loopback | Writing a 1 to this bit enables post-CDR reverse serial loopback. Writing a 0 disables post-CDR reverse serial loopback. |
Refer to Changing Transceiver Settings Using Register-Based Reconfiguration and Changing Transceiver Settings Using Streamer-Based Reconfiguration for the procedures you can use to update PMA settings.
- Using the reconfiguration controller (offset 0x11)
- Using the QSF assignments