Visible to Intel only — GUID: nik1398984282414
Ixiasoft
Visible to Intel only — GUID: nik1398984282414
Ixiasoft
17.13. Transceiver Reconfiguration Controller ATX PLL Calibration Registers
The following table lists the direct access ATX registers that you can access using Avalon-MM reads and writes on reconfiguration management interface.
ATX Addr | Bits | R/W | Register Name | Description |
---|---|---|---|---|
7’h30 | [9:0] | RW | logical channel number | The logical channel number. The Transceiver Reconfiguration Controller maps the logical address to the physical address. |
7’h32 | [9] | R | control and status | Error. When asserted, indicates an invalid channel or address. This bit is asserted after a write operation if the selected logical channel number selects a logical channel interface that is not connected to an ATX PLL. It is also be asserted if the tuning algorithm failed to converge on a working setting after a manual calibration. |
[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’h33 | [3:0] | RW | atx_offset | Specifies the 4-bit register address used for indirect accesses on the reconfiguration bus. Refer to Table 334 for offsets and values. |
7’h34 | [15:0] | RW | data | Reconfiguration data for the transceiver PHY registers. |
Offset | Bits | R/W | Register Name | Description |
---|---|---|---|---|
0x0 | [0] | RW | Control | Writing a 1 to this bit triggers ATX PLL calibration. This register self-clears. Unused bits of this register must be set to 0. The tx_cal_busy signal is asserted at initial runtime or if you reset the reconfiguration controller. It is not asserted if you manually re-trigger the ATX PLL calibration process. Writing a 1 to this bit will not trigger ATX PLL calibration if the PLL is already locked. |
0x1 | [1] | RW | Writing a 1 to this bit triggers the ATX PLL calibration even if the PLL is already locked. |
Refer to Changing Transceiver Settings Using Register-Based Reconfiguration for the procedures you can use to control ATX tuning.