Datasheet

2010 Microchip Technology Inc. DS39935C-page 115
ENC424J600/624J600
REGISTER 12-7: PHANE: PHY AUTO-NEGOTIATION EXPANSION REGISTER
R-0 R-0 R-0 R-0 R-0 R-0 R-0 R-0
r r r r r r r r
bit 15 bit 8
R-0 R-0 R-0 R/LH-0 R-0 R-0 R/LH-0 R-0
r r rPDFLTr r LPARCD LPANABL
bit 7 bit 0
Legend: LH = Latch High bit
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 15-5
Reserved: Ignore on read
bit 4
PDFLT: Parallel Detection Fault Status bit
1 = Parallel detection did not detect a valid link partner; automatically cleared when register is read
0 = Parallel detection is still in progress or a valid link partner is connected
bit 3-2
Reserved: Ignore on read
bit 1
LPARCD: Link Partner Abilities Received Status bit
1 = PHANLPA register has been written with a new value from the link partner; automatically cleared
when register is read
0 = PHANLPA contents have not changed since the last read of PHANE
bit 0
LPANABL: Link Partner Auto-Negotiation Able Status bit
1 = Link partner implements auto-negotiation
0 = Link partner does not implement auto-negotiation