Visible to Intel only — GUID: hco1410462611784
Ixiasoft
Visible to Intel only — GUID: hco1410462611784
Ixiasoft
10.1.1. DPTX_TX_CONTROL
The IRQ is asserted when AUX_IRQ_EN = 1 and in register DPTX_AUX_CONTROL flag MSG_READY = 1. IRQ is de-asserted by setting AUX_IRQ_EN to 0 or reading from DPTX_AUX_COMMAND. IRQ is also asserted if HPD_IRQ_EN = 1 and a new HPD event is detected (HPD_EVENT in register DPTX_TX_STATUS different from 00). IRQ is de-asserted by setting HPD_IRQ_EN to 0 or reading from DPTX_TX_STATUS.
Setting LANE_COUNT to 00000 causes the transmitter to always send a logical zero (i.e., a constant voltage level). This function can be used as a surrogate for “power down” for link layer compliance testing.
Field TX_LINK_RATE drives the respective tx_reconfig port.
Address: 0x0000
Direction: RW
Reset: 0x00000000
Bit |
Bit Name |
Function |
---|---|---|
31 |
HPD_IRQ_EN | Enables an IRQ issued to the Nios® II processor on an HPD event:
|
30 |
AUX_IRQ_EN | Enables an IRQ issued to the Nios® II processor when an AUX channel transaction reply is received from the sink:
|
29 |
Unused |
N/A |
28:21 |
TX_LINK_RATE | Main link rate expressed as multiples of 270 Mbps:
|
20 |
Reserved |
Reserved |
19 | ENHANCED_FRAME | 0 = Standard framing 1 = Enhanced framing |
18:10 | Unused | N/A |
9:5 |
LANE_COUNT | Lane count:
|
4 |
Unused |
N/A |
3:0 |
TP | Current training pattern:
|