10h–1Fh Register Map Detailed Description
BCM5718 Programmer’s Guide
Broadcom
®
January 29, 2016 • 5718-PG108-R
Page 530
1Ch: SGMII Slave Register (Shadow Register Selector = “15h”)
5
Override GBIC LED mode RW
1 = LEDs not remapped in GBIC mode.
0 = In GBIC mode LEDs mapped as follows.
LED1: RX_LOSS (copper link)
LED2: RX (copper receive activity)
LED3: TX (copper transmit activity)
LED4: LINK (both SerDes and copper are
linked)
0
4
Activity link led LSB
RW
Combined with bit 8 above.
11 = activity,linkspd[1:0] indicate 1000,100,10
link respectively, and blinks with activity.
10 = linkspd[1:0] indicate encode link, and blinks
when activity
01 = active indicates link, and blinks when
activity
00 = normal operation
These bits overrides bit 3 below.
0
3
ACTIVITY LED
ENABLE
RW
1 = normal operation (activity led indicates
transmit or receive activity).
0 = activity led indicates receive activity only
1
2
REMOTE FAULT LED
ENABLE
RW
1 = drive remote fault on quality led
0 = normal operation
0
1:0
LINK UTILIZATION LED
SELECTOR (NORTEL
LED)
RW
00 = normal operation
01 = transmit data on receive led
10 = receive data on receive led
11 = activity data on receive led
(This mode has higher priority than the activity
led enable in bit 3.)
00
Bit
Name
RW
Description
Default
15
WRITE ENABLE
RW
1 = write bits [9:0]
0 = read bits [9:0]
0
14:10 SHADOW REGISTER
SELECTOR
RW
Shadow Register Selector
10101
9
SERDES LINK
RO
1 = link up in fiber, SGMII,or GBIC modes
(when set in SGMII or GBIC mode, then both
copper and SerDes link must be valid).
0 = link down
0
8
SERDES DUPLEX
RO
1 = SerDes full-duplex
0 = SerDes half-duplex or auto-negotiating in
progress
1
Bit
Name
RW
Description
Default