RapidIO II Intel® FPGA IP User Guide

ID 683444
Date 9/28/2020
Public
Document Table of Contents

6.2.1.8. Port 0 Control 2 CSR

Table 95.  Port 0 Control 2 CSR — 0x154
Field Bits Access Function Default
SELECTED_BAUD_ RATE [31:28] RO The baud rate at which the port is initialized. Valid values are:
  • 4’b0000: No baud rate selected
  • 4’b0001: 1.25 Gbaud
  • 4’b0010: 2.5 Gbaud
  • 4’b0011: 3.125 Gbaud
  • 4’b0100: 5.0 Gbaud
  • 4’b0101: 6.25 Gbaud
All other values are reserved. The RapidIO II IP core operates at the highest supported and enabled baud rate.
4'b0
BD_RT_DISCOVERY_ SUPPORT [27] RO Indicates whether the RapidIO implementation supports automatic baud-rate discovery. The RapidIO II IP core does not support automatic baud-rate discovery, so this field always has the value of 0. 1'b0
BD_RT_DISCOVERY_ ENABLE [26] RO Controls whether automatic baud-rate discovery is enabled in the RapidIO implementation. The RapidIO II IP core does not support automatic baud-rate discovery, so this field always has the value of 0. 1'b0
1.25_GB_SUPPORT [25] RO Indicates whether the RapidIO II IP core supports port operation at 1.25 Gbaud. The IP core supports all baud rates that are equal or slower than the value of the Maximum baud rate parameter, because if you turn on Enable transceiver dynamic reconfiguration in the parameter editor, you can reconfigure the transceivers to set the baud rate to a lower frequency than the Maximum baud rate value.
  • 1’b0: The IP core does not support 1.25 Gbaud operation.
  • 1’b1: The IP core supports 1.25 Gbaud operation.
30
1.25_GB_ENABLE [24] RW Indicates whether the current data rate of the IP core is 1.25 Gbaud. The default value of this field is the value of the Maximum baud rate parameter. However, you can reconfigure the device transceivers to change the IP core data rate to a slower data rate.
  • 1’b0: The current IP core data rate is not 1.25 Gbaud.
  • 1’b1: The current IP core data rate is 1.25 Gbaud. This field can only have this value if 1.25_GB_SUPPORT has the value of 1.
31
2.5_GB_SUPPORT [23] RO Indicates whether the RapidIO II IP core supports port operation at 2.5 Gbaud. The IP core supports all baud rates that are equal or slower than the value of the Maximum baud rate parameter, because if you turn on Enable transceiver dynamic reconfiguration in the parameter editor, you can reconfigure the transceivers to set the baud rate to a lower frequency than the Maximum baud rate value.
  • 1’b0: The IP core does not support 2.5 Gbaud operation.
  • 1’b1: The IP core supports 2.5 Gbaud operation.
30
2.5_GB_ENABLE [22] RW Indicates whether the current data rate of the IP core is 2.5 Gbaud. The default value of this field is the value of the Maximum baud rate parameter. However, you can reconfigure the device transceivers to change the IP core data rate to a slower data rate.
  • 1’b0: The current IP core data rate is not 2.5 Gbaud.
  • 1’b1: The current IP core data rate is 2.5 Gbaud. This field can only have this value if 2.5_GB_SUPPORT has the value of 1.
31
3.125_GB_SUPPORT [21] RO Indicates whether the RapidIO II IP core supports port operation at 3.125 Gbaud. The IP core supports all baud rates that are equal or slower than the value of the Maximum baud rate parameter, because if you turn on Enable transceiver dynamic reconfiguration in the parameter editor, you can reconfigure the transceivers to set the baud rate to a lower frequency than the Maximum baud rate value.
  • 1’b0: The IP core does not support 3.125 Gbaud operation.
  • 1’b1: The IP core supports 3.125 Gbaud operation.
30
3.125_GB_ENABLE [20] RW Indicates whether the current data rate of the IP core is 3.125 Gbaud. The default value of this field is the value of the Maximum baud rate parameter. However, you can reconfigure the device transceivers to change the IP core data rate to a slower data rate.
  • 1’b0: The current IP core data rate is not 3.125 Gbaud.
  • 1’b1: The current IP core data rate is 3.125 Gbaud. This field can only have this value if 3.125_GB_SUPPORT has the value of 1.
31
5.0_GB_SUPPORT [19] RO Indicates whether the RapidIO II IP core supports port operation at 5.0 Gbaud. The IP core supports all baud rates that are equal or slower than the value of the Maximum baud rate parameter, because if you turn on Enable transceiver dynamic reconfiguration in the parameter editor, you can reconfigure the transceivers to set the baud rate to a lower frequency than the Maximum baud rate value.
  • 1’b0: The IP core does not support 5.0 Gbaud operation.
  • 1’b1: The IP core supports 5.0 Gbaud operation.
30
5.0_GB_ENABLE [18] RW Indicates whether the current data rate of the IP core is 5.0 Gbaud. The default value of this field is the value of the Maximum baud rate parameter. However, you can reconfigure the device transceivers to change the IP core data rate to a slower data rate.
  • 1’b0: The current IP core data rate is not 5.0 Gbaud.
  • 1’b1: The current IP core data rate is 5.0 Gbaud. This field can only have this value if 5.0_GB_SUPPORT has the value of 1.
31
6.25_GB_SUPPORT [17] RO Indicates whether the RapidIO II IP core supports port operation at 6.25 Gbaud. The IP core supports all baud rates that are equal or slower than the value of the Maximum baud rate parameter, because if you turn on Enable transceiver dynamic reconfiguration in the parameter editor, you can reconfigure the transceivers to set the baud rate to a lower frequency than the Maximum baud rate value.
  • 1’b0: The IP core does not support 6.25 Gbaud operation.
  • 1’b1: The IP core supports 6.25 Gbaud operation.
30
6.25_GB_ENABLE [16] RW Indicates whether the current data rate of the IP core is 6.25 Gbaud. The default value of this field is the value of the Maximum baud rate parameter. However, you can reconfigure the device transceivers to change the IP core data rate to a slower data rate.
  • 1’b0: The current IP core data rate is not 6.25 Gbaud.
  • 1’b1: The current IP core data rate is 6.25 Gbaud. This field can only have this value if 6.25_GB_SUPPORT has the value of 1.
31
RSRV [15:4] RO Reserved. 12'b0
INACTIVE_LNS_EN [3] RO Indicates whether the RapidIO implementation supports enabling inactive lanes for testing. The RapidIO II IP core does not support enabling inactive lanes for testing, so this bit always has the value of 0. 1'b0
DATA_SCRMBL_DIS [2] RW Indicates whether data scrambling is disabled.
  • 1’b0: The transmit scrambler and the receive descrambler are enabled.
  • 1’b1: The transmit scrambler and the receive descrambler are disabled. However, the transmit scrambler remains enabled for the generation of pseudo-random data characters for the IDLE2 random data field.
This bit is for test use only. Do not assert this bit during normal operation.
1'b0
REMOTE_TX_EMPH_S UPPORT [1] RO Indicates whether the port can transmit commands to control the transmit emphasis in the connected port.
  • 1’b0: The port does not support adjusting the transmit emphasis in the connected port.
  • 1’b1: The port supports adjusting the transmit emphasis in the connected port.
1'b1
REMOTE_TX_EMPH_E NABLE [0] RO Indicates whether the port may transmit commands to control the transmit emphasis in the connected port.
  • 1’b0: Adjusting the transmit emphasis in the connected port is disabled in this port.
  • 1’b1: Adjusting the transmit emphasis in the connected port is enabled in this port. This field can only have this value if REMOTE_TX_EMPH_SUPPORT has the value of 1.
1'b1
30 The value of the <Gbaud rate> _GB_SUPPORT fields is determined by the value of the Maximum baud rate parameter. For baud rates equal or slower than the Gbaud rate specified in the parameter, the value of <Gbaud rate> _GB_SUPPORT is 1’b1. For baud rates faster than the Gbaud rate specified in the parameter, the value of <Gbaud rate> _GB_SUPPORT is 1’b0.
31 The value of the <Gbaud rate> _GB_ENABLE fields is the current data rate of the IP core. The default value of this field is the value of the Maximum baud rate parameter. If you turn on Enable transceiver dynamic reconfiguration in the parameter editor, you can reconfigure your IP core to a baud rates equal or slower than the Gbaud rate specified in the parameter, by reconfiguring the device transceivers.

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