7.2. Configuration and Status Registers
Word Address | Bits | Register Name | Description | Access |
Default Value |
---|---|---|---|---|---|
TX MAC Status | |||||
0x0081 | 7:4 | TXA_reentry_buffer | This field indicates the number of lane alignment re-entry. |
RO | 0x00 |
1 | TXA_POSTFRAME_WAIT_entered | This bit indicates the core is in TXA_POSTFRAME_WAIT state and only be cleared when the state machine enters IDLE state or reset. | RO | 0x0 | |
0 | TXA_FILL_entered | This bit indicates the alignment state machine enters TXA_FILL state and only be cleared when the state machine enters IDLE state or reset. | RO | 0x0 | |
TX Error Status Register | |||||
0x0090 | 6 | tx_burst_gap_err | TX burst gap error. This bit is set when the gap between two consecutive bursts (or packets) on TX user data interface is less than the required BURST_GAP (a synthesis option). When this error happens, make sure the user interface behavior and BURST_GAP are matching. |
W1C |
0x0 |
5 | ecc_err_fatal | TX ECC Error Fatal consolidated status (of all lanes). This bit is set when double bit error is detected and uncorrected. |
W1C |
0x0 | |
4 | ecc_err_corrected | TX ECC Error Corrected consolidated status (of all lanes). This bit is set when single bit error is detected and corrected. |
W1C |
0x0 | |
3 | adapt_fifo_overflow | TX MAC Adaptation FIFO overflow consolidated status (of all lanes). In normal condition with all clocks running correctly, this bit is set when the user data rate is faster than expected.When this happens, stop further data transfer and check if the clocks are set correctly. |
W1C |
0x0 | |
2 | tx_sync_done_lost | TX Lost of Lane Alignment consolidated status (of all lanes). |
W1C |
0x0 | |
1 | phy_fifo_underflow | TX PHY Phase Compensation FIFO underflow consolidated status (of all lanes). This bit is set when the IP core has major error and requires a full IP core reset. |
W1C |
0x0 | |
0 | phy_fifo_overflow | TX PHY Phase Compensation FIFO overflow consolidated status (of all lanes). This bit is set when the IP core has major error and requires a full IP core reset. |
W1C |
0x0 | |
TX Error Interrupt Enable Register | |||||
0x0091 | 6 | tx_burst_gap_err_en | Set this bit to 1 to enable the Burst Gap Error Interrupt. |
RW |
0x1 |
5 | ecc_err_fatal_en | Set this bit to 1 to enable the ECC Uncorrected Error Interrupt. |
RW |
0x0 | |
4 | ecc_err_corrected_en | Set this bit to 1 to enable the ECC Corrected Error Interrupt. |
RW |
0x0 | |
3 | adapt_fifo_overflow_en | Set this bit to 1 to enable the Adaptation FIFO Overflow Interrupt. |
RW |
0x1 | |
2 | tx_sync_donelost_en | Set this bit to 1 to enable the Loss of Lane Alignment Interrupt. |
RW |
0x0 | |
1 | phy_fifo_underflow_en | Set this bit to 1 to enable the PHY FIFO Empty Interrupt. |
RW |
0x0 | |
0 | phy_fifo_overflow_en | Set this bit to 1 to enable the PHY FIFO Error Interrupt. |
RW |
0x0 |
Word Address | Bit | Register Name | Description | Access | Default Value |
---|---|---|---|---|---|
RX MAC Status | |||||
0x00C1 | 9 | rx_aligned | This bit set when sink core link is aligned successfully. | RO | 0x0 |
8:2 | LASM_misaligned_counter | This field indicates the number of sink alignment retries. | RO | 0x00 | |
1 | LASM_DESKEW_entered | This bit is set to indicates sink alignment state machine is in LASM_DESKEW state and is only cleared when the state machine enters IDLE state or reset. | RO | 0x00 | |
0 | LASM_FRAME_LOCK_entered | This bit is set to indicates sink alignment state machine is in LASM_FRAME_LOCK state and is only cleared when the state machine enters IDLE state or reset. | RO | 0x00 | |
RX MAC Control Register | |||||
0x00C2 | 0 | link_reinit | Set this bit to initiate link re-initialization. When asserted, lane alignment state machine goes to IDLE state and restart the lane alignment process. |
RW |
0x0 |
RX Error Status Register | |||||
0x00D00 | 11 | rx_data_err | RX Data Error. This bit is set when the MAC receives data to transmit to user logic but ready_rx signal is de-asserted. |
W1C | 0x0 |
10 | rx_deskew_fatal | RX Lane Deskew Fatal status (of all lanes). This bit is set, when the lane skews across all lanes have exceeded the hardware de-skew capability. This should not happen under normal conditions. When this bit is set, identify the routing of the lanes (e.g. RX PHY-> board routing -> TX PHY) where large skews are introduced. |
W1C |
0x0 | |
9 | ecc_err_fatal | RX ECC Error Fatal consolidated status (of all lanes). This bit is set when double bit error detected and uncorrected. |
W1C |
0x0 | |
8 | ecc_err_corrected | RX ECC Error Corrected consolidated status (of all lanes). This bit is set when single bit error is detected and corrected. |
W1C |
0x0 | |
7 | adapt_fifo_overflow | RX Adaptation FIFO Overflow This bit is set when user data rate is slower than expected. When this bit is set, stop all data transfer. Verify clocks are set correctly, or verify if ready_rx signal is asserted correctly. |
W1C | 0x0 | |
6 | rx_alignment_lostlock | RX Lane Alignment Lost consolidated status (of all lanes). This bit is set when lost of alignment is detected by the MAC. This error happens when the SYNC control words across all lanes do not appear in the same clock cycle and data corruption could have happened since one or more lanes would be out of alignment with others. The RX MAC re-establishes the alignment to recover from this error. However, if the condition still persists, a full IP reset is required. |
W1C |
0x0 | |
5 | rx_align_retry_fail | RX Lane Alignment Retry Fail consolidated status (of all lanes). This bit is set to indicate the number of lane alignment retries has exceeded the expected value. |
W1C |
0x0 | |
4 | rx_pcs_err | RX PCS Error consolidated status (of all lanes). This bit is set when a synchronization error, metaframe error or crc32 error happens. |
W1C |
0x0 | |
3 | rx_crc32err | RX CRC error consolidated status (of all lanes) for data integrity monitoring purpose. |
W1C |
0x0 | |
2 | — | Reserved |
— | — | |
1 | rx_block_lostlock | RX Loss of Block Lock consolidated status (of all lanes). This bit is set when there is a loss of block lock in the receive frame due to signal integrity errors on the serial data stream or when the remote partner is being reset.When this happen, check and remove the cause of loss of block lock to enable the IP core to self-recover to normal state. |
W1C |
0x0 | |
0 | phy_fifo_overflow | RX PHY Phase Compensation FIFO overflow consolidated status (of all lanes). This bit is set when the IP core has major error and requires a full IP core reset. |
W1C |
0x0 | |
RX Error Interrupt Enable Register | |||||
0x00D1 | 11 | rx_data_err_int_en | RX Data Error Enable Set this bit to 1 to enable the RX Data Error Enable Interrupt. |
RW | 0x0 |
10 | rx_deskew_fatal_int_en | Set this bit to 1 to enable the RX Lane Deskew Fatal Interrupt. | RW |
0x0 | |
9 | ecc_err_fatal_int_en | Set this bit to 1 to enable the RX ECC Error Detected and Uncorrected Interrupt. | RW | 0x0 | |
8 | ecc_err_corrected_int_en | Set this bit to 1 to enable the RX ECC Error Detected and Corrected Interrupt. | RW | 0x0 | |
7 | adapt_fifo_over_flow_int_en | RX Adaptation FIFO Overflow Enable Set this bit to 1 to enable the RX Adaptation FIFO Overflow Interrupt. |
RW | 0x0 | |
6 | rx_alignment_lostlock_int_en | Set this bit to 1 to enable the RX Loss of Lane Alignment Interrupt. | RW | 0x0 | |
5 | rx_align_retry_fail_int_en | Set this bit to 1 to enable the RX Lane Alignment Retry Fail Interrupt. | RW | 0x0 | |
4 | rx_pcs_err_int_en | Set this bit to 1 to enable the RX PCS Error Interrupt. | RW | 0x0 | |
3 | rx_crc32err_int_en | Set this bit to 1 to enable the RX CRC Error Interrupt. | RW | 0x0 | |
2 | — | Reserved | — | — | |
1 | rx_block_lostlock_int_en | Set this bit to 1 to enable the RX Loss of Block Lock Interrupt. | RW | 0x0 | |
0 | phy_fifo_overflow_int_en | Set this bit to 1 to enable the RX PHY FIFO Overflow Interrupt. | RW | 0x0 |
Word Addr | Bits | R/W | Register Name | Description |
---|---|---|---|---|
PMA Common Control and Status Registers | ||||
0x022 | [<p>-1:0] | RO | pma_tx_pll_is_locked | If < p > is the PLL number, Bit[< p >] indicates that the TX CMU PLL (< p >) is locked to the input reference clock. There is typically one pma_tx_pll_is_locked bit per system. |
Reset Control Registers-Automatic Reset Controller | ||||
0x041 | [31:0] | RW | reset_ch_bitmask | Reset controller channel bitmask for digital resets. The default value is all 1s. Channel <n> can be reset when bit< n > = 1. Channel < n > cannot be reset when bit< n > = 0. The Interlaken PHY IP requires the use of the embedded reset controller to initiate the correct the reset sequence. A hard reset to phy_mgmt_clk_reset and mgmt_rst_reset is required for Interlaken PHY IP. Intel does not recommend use of a soft reset or the use of these reset register bits for Interlaken PHY IP. |
0x042 | [1:0] | WO | reset_control (write) | Writing a 1 to bit 0 initiates a TX digital reset using the reset controller module. The reset affects channels enabled in the reset_ch_bitmask. Writing a 1 to bit 1 initiates a RX digital reset of channels enabled in the reset_ch_bitmask. |
RO | reset_status(read) | Reading bit 0 returns the status of the reset controller TX ready bit. Reading bit 1 returns the status of the reset controller RX ready bit. | ||
Reset Controls -Manual Mode | ||||
0x044 | - | RW | reset_fine_control | You can use the reset_fine_control register to create your own reset sequence. The reset control module, illustrated in Transceiver PHY Top-Level Modules, performs a standard reset sequence at power on and whenever the phy_mgmt_clk_reset is asserted. Bits [31:4, 0] are reserved. The Interlaken PHY IP requires the use of the embedded reset controller to initiate the correct the reset sequence. A hard reset to phy_mgmt_clk_reset and mgmt_rst_reset is required for Interlaken PHY IP. Intel does not recommend use of a soft reset or the use of these reset register bits for Interlaken PHY IP. |
[3] | RW | reset_rx_digital | Writing a 1 causes the RX digital reset signal to be asserted, resetting the RX digital channels enabled in reset_ch_bitmask. You must write a 0 to clear the reset condition. | |
[2] | RW | reset_rx_analog | Writing a 1 causes the internal RX digital reset signal to be asserted, resetting the RX analog logic of all channels enabled in reset_ch_bitmask. You must write a 0 to clear the reset condition. | |
[1] | RW | reset_tx_digital | Writing a 1 causes the internal TX digital reset signal to be asserted, resetting all channels enabled in reset_ch_bitmask. You must write a 0 to clear the reset condition. | |
PMA Control and Status Registers | ||||
0x061 | [31:0] | RW | phy_serial_loopback | Writing a 1 to channel < n > puts channel < n > in tx to rx serial loopback mode. For information about pre- or post-CDR rx to tx serial loopback modes, refer to Loopback Modes. |
0x064 | [31:0] | RW | pma_rx_set_locktodata | When set, programs the RX CDR PLL to lock to the incoming data. Bit < n > corresponds to channel < n >. By default, the Interlaken PHY IP configures the CDR PLL in Auto lock Mode. This bit is part of the CDR PLL Manual Lock Mode which is not the recommended usage. |
0x065 | [31:0] | RW | pma_rx_set_locktoref | When set, programs the RX CDR PLL to lock to the reference clock. Bit < n > corresponds to channel < n >. By default, the Interlaken PHY IP configures the CDR PLL in Auto lock Mode. This bit is part of the CDR PLL Manual Lock Mode which is not the recommended usage. |
0x066 | [31:0] | RO | pma_rx_is_lockedtodata | When asserted, indicates that the RX CDR PLL is locked to the RX data, and that the RX CDR has changed from LTR to LTD mode. Bit < n > corresponds to channel < n >. |
00x067 | [31:0] | RO | pma_rx_is_lockedtoref | When asserted, indicates that the RX CDR PLL is locked to the reference clock. Bit < n > corresponds to channel < n >. |
0x080 | [31:0] | WO | indirect_addr | Provides for indirect addressing of all PCS control and status registers. Use this register to specify the logical channel address of the PCS channel you want to access. |
Device Registers | ||||
[27] | RO | rx_crc32_err | Asserted by the CRC32 checker to indicate a CRC error in the corresponding RX lane. From block: CRC32 checker. |
|
0x081 | [25] | RO | rx_sync_lock | Asserted by the frame synchronizer to indicate that 4 frame synchronization words have been received so that the RX lane is synchronized. From block: Frame synchronizer. |
[24] | RO | rx_word_lock | Asserted when the first alignment pattern is found. The RX FIFO generates this synchronous signal. From block: The RX FIFO generates this synchronous signal. |
For Native PHY IP core configuration and status registers, refer to Arria® 10 Transceiver Register Map, Logical View of the Stratix® 10 L-Tile/H-Tile Transceiver Registers, and Stratix® 10 E-Tile Transceiver PHY User Guide Register Map in related links.