pcs_an_np_tx (GEM) Register Description
| Register Name | pcs_an_np_tx |
|---|---|
| Offset Address | 0x000000021C |
| Absolute Address |
0x00FF0B021C (GEM0) 0x00FF0C021C (GEM1) 0x00FF0D021C (GEM2) 0x00FF0E021C (GEM3) |
| Width | 32 |
| Type | mixedMixed types. See bit-field details. |
| Reset Value | 0x00000000 |
| Description | The value of this register is used to transmit the next page information for the GEM PCS. For next page exchange to work this register must be written within 10 ms of receiving a new page from the link partner. If the link partner is requesting next pages and the GEM has none or no more to send then this register should be written with the null message (0x2001). The value 0x0000 must not be written to this register. |
pcs_an_np_tx (GEM) Register Bit-Field Summary
| Field Name | Bits | Type | Reset Value | Description |
|---|---|---|---|---|
| Reserved | 31:16 | roRead-only | 0x0 | Reserved. Set to zero. |
| next_page_to_transmit | 15 | rwNormal read/write | 0x0 | Next page to transmit - this bit indicates whether this is the last next page to be transmitted:0: Last page. 1: Additional page(s) to follow. |
| Reserved | 14 | roRead-only | 0x0 | Reserved. Set to zero. |
| message_page_indicator | 13 | rwNormal read/write | 0x0 | Message page indicator - this bit identifies the message. 0: Unformatted page. 1: Message page. |
| acknowledge_2 | 12 | rwNormal read/write | 0x0 | Acknowledge 2 - when set active high, indicates that the GEM PCS has the ability to comply with the last received message. |
| Reserved | 11 | roRead-only | 0x0 | Reserved. Set to zero. |
| message | 10:0 | rwNormal read/write | 0x0 | Message - contains data as defined by the message page indicator bit. |