Broadcom BCM5722 - Table 489: IEEE Extended Status Register (Phy_Addr = 0 X1, Reg_Addr = 0 Fh)

BCM5722 Programmer’s Guide
10/15/07
Broadcom Corporation
Page 427 Transceiver Registers Document 5722-PG101-R
IEEE EXTENDED STATUS REGISTER (PHY_ADDR = 0X1, REG_ADDR = 0FH)
12 Remote Receiver
Status
The BCM5722 Ethernet controller returns a 1 on bit 12 of the
1000BASE-T Status Register when the remote receiver status is
OK, otherwise, it returns a 0.
• 1 = Remote receiver OK.
• 0 = Remote receiver not OK.
0RO
11 Link Partner
1000BASE-T Full-
Duplex Capability
The BCM5722 Ethernet controller returns a 1 on bit 11 of the
1000BASE-T Status Register when the link partner has
advertised 1000BASE-T full-duplex capability, otherwise, it
returns a 0.
• 1 = Link partner is 1000BASE-T full-duplex capable.
• 0 = Link partner not 1000BASE-T full-duplex capable.
0RO
10 Link Partner
1000BASE-T Half-
Duplex Capability
The BCM5722 Ethernet controller returns a 1 on bit 10 of the
1000BASE-T Status Register when the link partner has
advertised 1000BASE-T half-duplex capability, otherwise, it
returns a 0.
• 1 = Link partner is 1000BASE-T half-duplex capable.
• 0 = Link partner not 1000BASE-T half-duplex capable.
0RO
9:8 Reserved Write as 0, ignore on read. 0 RO
7:0 Idle Error Count The BCM5722 Ethernet controller counts the number of idle
errors received while the local receiver status is OK. Bits 7
through 0 of the 1000BASE-T Status Register returns the
number of idle errors counted since the last time the register was
read. The counter freezes at the maximum value (FFh) to prevent
overflow. The Number of idle errors since last read.
0RO
Table 489: IEEE Extended Status Register (PHY_Addr = 0x1, Reg_Addr = 0Fh)
Bit Field Description Init Access
15 1000BASE-X Full-
Duplex Capability
The BCM5722 Ethernet controller is not capable of
1000BASE-X full-duplex operation, and returns a 0 when
bit 15 of the IEEE extended Status Register is read.
• 1 = 1000BASE-X full-duplex capable.
• 0 = Not 1000BASE-X full-duplex capable.
0RO
L
14 1000BASE-X Half-
Duplex Capability
The BCM5722 Ethernet controller is not capable of
1000BASE-X half-duplex operation, and returns a 0 when
bit 14 of the IEEE extended Status Register is read.
• 1 = 1000BASE-X half-duplex capable.
• 0 = Not 1000BASE-X half-duplex capable.
0RO
L
13 1000BASE-T Full-
Duplex Capability
The BCM5722 Ethernet controller is capable of
1000BASE-T full-duplex operation, and returns a 1 when
bit 13 of the IEEE extended Status Register is read.
• 1 = 1000BASE-T full-duplex capable.
• 0 = Not 1000BASE-T full-duplex capable.
1RO
H
Table 488: 1000BASE-T Status Register (PHY_Addr = 0x1, Reg_Addr = 0Ah) (Cont.)
Bit Field Description Init Access