10h–1Fh Register Map Detailed DescriptionBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 509
11h: PHY_Extended_Status_Register (copper side only)
2 BLOCK_TXEN_MODE RW 0 1 = extend transmit IPG’s to at
least 4 nibbles in 100BASE-TX
mode
0 = do not extend short transmit
IPG’s
1 UNIDIRECTIONAL_ENABLE RW 0 1 = able to transmit packets
when no link
0 = requires link in order to
transmit packets
Draggy kell
0 GMII_RGMII_FIFO_ELASTICITY[0] RW 0 GMII/RGMII FIFO ELASTICITY
[1:0] in copper mode or RGMII
100fx on SerDes pads
11 = Support 20k byte packets
(18k 1G+)
10 = support 15k byte packets
01 = support 10k byte packets
00 = support 5k byte packets (w/
200ppm offset)
MSB is located at expansion reg
46[14]
Bit Name R/W Default Description
15 AUTONEG_BASE_PG_SELECTOR_FIELD_
MISMATCH
RO LH 0 1 = link partner base page
selector field mismatched
advertised selector field since last
read
0 = no mismatch detected since
last read
14 WIRESPEED_DOWNGRADE RO 0 1 = autoneg advertising
downgraded
0 = autoneg advertised as shown
in regs 04h & 09h
13 MDI_CROSSOVER_STATE RO 0 1 = MDIX
0 = MDI
12 INTERRUPT_STATUS RO 0 1 = unmasked interrupt currently
active
0 = interrupts clear
11 REMOTE_RECEIVER_STA TUS RO LL 0 1 = remote receiver status OK
0 = remote receiver status not OK
10 LOCAL_RECEIVER_STATUS RO LL 0 1 = local receiver status OK
0 = local receiver status not OK
Bit Name RW Default Description
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