SNLS742A September 2023 – April 2024 DP83TC811-Q1
PRODUCTION DATA
15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 |
Reset | xMII Loopback | Speed Selection | Auto-Negotiation Enable | IEEE Power Down | Isolate | Reserved | |
RW/SC-0 | RW-0 | RO-1 | RO-0 | RW-0 | RW-0 | RO-01 | |
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Reserved | |||||||
RO-0 |
BIT | FIELD | TYPE | DEFAULT | DESCRIPTION |
---|---|---|---|---|
15 | Reset | RW, SC | 0 | PHY Software Reset: 1 = Initiate software Reset / Reset in Progress 0 = Normal Operation Writing a 1 to this bit resets the PHY PCS registers. When the reset operation is done, this bit is cleared to 0 automatically. PHY Vendor Specific registers will not be cleared. |
14 | xMII Loopback | RW | 0 | xMII Loopback: 1 = xMII Loopback enabled 0 = Normal Operation When xMII loopback mode is activated, the transmitted data presented on xMII TXD is looped back to xMII RXD internally. There is no LINK indication generated when xMII loopback is enabled. |
13 | Speed Selection | RO | 1 | Speed Selection: Always 100Mbps Speed |
12 | Auto-Negotiation Enable | RO | 0 | Auto-Negotiation: Not supported |
11 | IEEE Power Down | RW | 0 | Power Down: 1 = IEEE Power Down 0 = Normal Operation The PHY is powered down after this bit is set. Only register access is enabled during this power down condition. To control the power down mechanism, this bit is OR'ed with the input from the INT/PWDN_N pin. When the active low INT/PWDN_N is asserted, this bit is set. |
10 | Isolate | RW | 0 | Isolate: 1 = Isolates the port from the xMII with the exception of the serial management interface 0 = Normal Operation |
9:0 | Reserved | RO | 01 0000 0000 | Reserved |