10h–1Fh Register Map Detailed Description
BCM5718 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