SerDes PHY Register Definitions
BCM5718 Programmer’s Guide
Broadcom
®
January 29, 2016 • 5718-PG108-R
Page 554
When the link partner is in SGMII mode (bit-0 = 1), then:
Bit[15] = Link
Bit[14] = Acknowledge
Bit[13] = Duplex
Bit[11:10] = Speed
The other bits are reserved and should be zero.
AUTONEGEXPANSION
Register Description:
Auto-negotiation expansion register.
Register Offset:
0x6 at Block 0
EXTENDEDSTATUS
Register Description:
Extended status register.
Register Offset:
0xF at Block 0
Table 132: AUTONEGEXPANSION
Bits
Name
RW
Description
Default
15:3
RESERVED
RO
Reserved
0x000
2
NP_ABILITY
RO
Next page ability
0 = Local device is not next page capable.
1 = Local device is next page capable.
0
1
PG_REC
RO
Page received
0 = New link code word has not been received.
1 = Received new link code word.
0
0
RESERVED
RO
Reserved write 0, ignore read.
0
Table 133: EXTENDEDSTATUS
Bits
Name
RW
Description
Default
15
1000BASEX_FDX
RO
0 = 1000Base-X full duplex not capable.
1 = 1000Base-X full duplex capable.
1
14
1000BASEX_HDX
RO
0 = 1000Base-X half duplex not capable.
1 = 1000Base-X half duplex capable.
1
13
1000BASET_FDX
RO
0 = 1000Base-T full duplex not capable.
1 = 1000Base-T full duplex capable.
0
12
1000BASET_HDX
RO
0 = 1000Base-T half duplex not capable.
1 = 1000Base-T half duplex capable.
0
11:0
RESERVED
RO
Reserved write 0, ignore read.
0x000