Datasheet

KSZ8721BL/SL
DS00002813A-page 22  2018 Microchip Technology Inc.
TABLE 4-8: REGISTER 6H - AUTO-NEGOTIATION EXPANSION
Bit Name Description Default Reference
6.15:5 Reserved — RO 0
6.4 Parallel Detection Fault
1 = Fault detected by parallel detection
0 = No fault detected by parallel detection
RO/LH 0
6.3
Link Partner Next Page
Able
1 = Link partner has next page capability
0 = Link partner does not have next page capability
RO 0
6.2 Next Page Able
1 = Local device has next page capability
0 = Local device does not have next page capability
RO 1
6.1 Page Received
1 = New page received
0 = New page not yet received
RO/LH 0
6.0
Link Partner
Auto-Negotiation Able
1 = Link partner has auto-negotiation capability
0 = Link partner does not have auto-negotiation
capability
RO 0
TABLE 4-9: REGISTER 7H - AUTO-NEGOTIATION NEXT PAGE
Bit Name Description Default Reference
7.15 Next Page
1 = Additional next page(s) will follow
0 = Last page
RW 0
7.14 Reserved — RP 0
7.13 Message Page
1 = Message page
0 = Unformatted page
RW 1
7.12 Acknowledge 2
1 = Will comply with message
0 = Cannot comply with message
RW 0
7.11 Toggle
1 = Previous value of the transmitted link code
word equaled logic One
0 = Logic Zero
RO 0
7.10:0 Message Field 11-bit wide field to encode 2048 messages RW 001
TABLE 4-10: REGISTER 8H - LINK PARTNER NEXT PAGE ABILITY
Bit Name Description Default Reference
8.15 Next Page
1 = Additional next page(s) will follow
0 = Last page
RO 0
8.14 Acknowledge
1 = Successful receipt of link word
0 = No successful receipt of link word
RO 0
8.13 Message Page
1 = Message Page
0 = Unformatted page
RO 0
8.12 Acknowledge 2
1 = Able to act on the information
0 = Not able to act on the information
RO 0
8.11 Toggle
1 = Previous value of transmitted link code word
equal to logic zero
0 = Previous value of transmitted link code word
equal to logic one
RO 0
8.10:0 Message Field — RO 0
TABLE 4-11: REGISTER 15H - RXER COUNTER
Bit Name Description Default Reference
15.15:0 RXER Counter RX Error counter for the RX_ER in each package RO 000