10h–1Fh Register Map Detailed DescriptionBCM5718 Programmer’s Guide
Broadcom®
January 29, 2016 • 5718-PG108-R Page 541
1Ch: Misc 1000-X Status Register (Shadow Register Selector = “1dh”)
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 11101
9 TX FIFO ERROR RO
LH
1 = transmit FIFO error since last read
0 = no transmit FIFO error since last read
0
8 RX FIFO ERROR RO
LH
1 = receive FIFO error since last read
0 = no receive FIFO error since last read
0
7 BAD FIFO POINTER RO
LH
1 = FIFO pointer all zeros since last read
0 = bad FIFO pointer has not occurred since last
read
0
6 FALSE CARRIER
JAMMED (TX SIDE)
RO
LH
1 = false carrier detected on copper receiver
and jammed in SGMII/GBIC mode to SerDes
transmitter since last read
0 = no false carrier jammed or mode is disabled
via register 1ch shadow 1bh [7]
0
5 FALSE CARRIER
DETECTED (RX SIDE)
RO
LH
1 = false carrier detected on SerDes receiver
since last read
0 = no false carriers detected since last read
0
4 CRC ERROR
DETECTED
RO
LH
1 = crc error detected since last read
0 = no crc error detected since last read or mode
is disabled via register 1ch shadow 1bh [0]
0
3 TRANSMIT ERROR
DETECTED
RO
LH
1 = transmit error code detected since last read
(rx_data_error state in pcs receive)
0 = no transmit error code detected since last
read
0
2 RECEIVE ERROR
DETECTED
RO
LH
1 = receive error since last read
(early_end state in pcs receive)
0 = no receive error since last read
0
1 CARRIER EXTEND
ERROR DETECTED
RO
LH
1 = carrier extend error since last read
(extend_err state in pcs receive)
0 = no carrier extend error since last read
0
0 EARLY END
EXTENSION
DETECTED
RO
LH
1 = early end extension since last read
(early_end_ext state in pcs receive)
0 = no early end extension since last read
0
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