Broadcom BCM5722 - Table 491: PHY Extended Status Register (Phy_Addr = 0 X1, Reg_Addr = 11 H)

Programmer’s Guide BCM5722
10/15/07
Broadcom Corporation
Document 5722-PG101-R Transceiver Registers Page 430
PHY EXTENDED STATUS REGISTER (PHY_ADDR = 0X1, REG_ADDR = 11H)
Table 491: PHY Extended Status Register (PHY_Addr = 0x1, Reg_Addr = 11h)
Bit Field Description Init Access
15 Auto-negotiation Base
Page Selector Field
Mismatch
• 1 = Link Partner Base Page Selector field mismatched
Advertised Selector field since last read.
• 0 = No mismatch detected since last read.
0RO, LH
14 Reserved
13 MDI Crossover State The BCM5722 Ethernet controller returns a 1 on bit 13 of the
PHY Extended Status Register when the BCM5722 Ethernet
controller is automatically switching the transmit and receive
pairs to communicate with a remote device. This bit returns a
0 when the BCM5722 Ethernet controller is in normal MDI
mode.
• 1 = Performing MDI crossover.
• 0 = Normal MDI mode.
0RO
12 Interrupt Status The BCM5722 Ethernet controller returns a 1 on bit 12 of the
PHY Extended Status Register when any unmasked interrupt
is currently active, otherwise, it returns a 0.
• 1 = Unmasked interrupt currently active.
• 0 = Interrupts clear.
0RO
11 Remote Receiver
Status
The BCM5722 Ethernet controller returns a 1 on bit 11 of the
PHY Extended Status Register when the remote receiver
status is OK. When the BCM5722 Ethernet controller detects
that the remote receiver is not OK, this bit is latched at 0 and
remains so until the bit is read and the remote receiver status
is OK.
• 1 = Remote receiver OK.
• 0 = Remote receiver not OK since last read.
0RO
LL
10 Local Receiver Status The BCM5722 Ethernet controller returns a 1 on bit 10 of the
PHY Extended Status Register when the local receiver status
is OK. When the BCM5722 Ethernet controller detects that the
local receiver is not OK, this bit is latched at 0 and remains so
until the bit is read, and the remote receiver status is OK.
• 1 = Local receiver OK.
• 0 = Local receiver not OK since last read.
0RO
LL
9 Locked The BCM5722 Ethernet controller returns a 1 on bit 9 of the
PHY Extended Status Register when the descrambler is
locked to the incoming data stream, otherwise, it returns a 0.
• 1 = Descrambler locked.
• 0 = Descrambler unlocked.
0RO
8 Link Status The BCM5722 Ethernet controller returns a 1 on bit 8 of the
PHY Extended Status Register when the link status is good,
otherwise, it returns a 0.
• 1 = Link pass.
• 0 = Link fail.
0RO
7 CRC Error Detected The BCM5722 Ethernet controller returns a 1 on bit 7 of the
PHY Extended Status Register while its link partner is
signaling a remote fault condition, otherwise, it returns a 0.
• 1 = CRC error detected.
• 0 = No CRC error since last read.
0RO