Broadcom BCM5722 Programmer's Manual page 511

Programmer's Guide
10/15/07
Table 513: Auxiliary Status Summary Register (PHY_Addr = 0x1, Reg_Addr = 19h) (Cont.)
Bit Field
2 Link Status
1 Pause
Resolution–Receive
Direction
0 Pause
Resolution–Transmit
Direction
* Indicates the negotiated HCD when auto-negotiation enable = 1. Indicates the manually selected speed and duplex mode
when auto-negotiation enable = 0.
Document 5722-PG101-R
Description
The BCM5722 Ethernet controller returns a 1 on bit 2 of the
auxiliary status summary register when the link status is
good, otherwise, it returns a 0.
• 1 = Link is up (Link Pass state).
• 0 = Link is down (Link Fail state).
When auto-negotiation has completed, the BCM5722
Ethernet controller returns the result of the pause resolution
function for full-duplex flow control on bits 1:0 of the auxiliary
status summary register. When bit 1 returns a 1, the link
partner can send pause frames toward the local device.
These bits are only guaranteed to be valid when bit 15 of the
Auxiliary Status Summary Register is 1.
• 1 = Enable pause receive.
• 0 = Disable pause receive.
When auto-negotiation has completed, the BCM5722
Ethernet controller returns the result of the pause resolution
function for full-duplex flow control on bits 1:0 of the auxiliary
status summary register. When bit 0 returns a 1, pause
frames can be transmitted by the local device to the link
partner. These bits are only guaranteed to be valid when bit
15 of the Auxiliary Status Summary Register is 1.
• 1 = Enable pause transmit.
• 0 = Disable pause transmit.
Bro adco m Co rp or atio n
BCM5722
Init Access
0 RO
0 RO
0 RO
Transceiver Registers Page 452