Micrel, Inc.
KSZ9021RL/RN
Mode(1)
Address
Name
Description
Default
6.0
Link Partner
Auto-
Negotiation
Able
1 = Link partner has auto-negotiation capability
RO
0
0 = Link partner does not have auto-negotiation
capability
Register 7 (7h) – Auto-Negotiation Next Page
7.15
Next Page
1 = Additional next page(s) will follow
0 = Last page
RW
0
7.14
7.13
Reserved
RO
0
1
Message Page 1 = Message page
0 = Unformatted page
RW
7.12
7.11
Acknowledge2
1 = Will comply with message
RW
RO
0
0
0 = Cannot comply with message
Toggle
1 = Previous value of the transmitted link code
word equaled logic one
0 = Logic zero
7.10:0
Message Field
11-bit wide field to encode 2048 messages
RW
RO
RO
RO
RO
RO
000_0000_0001
Register 8 (8h) – Auto-Negotiation Link Partner Next Page Ability
8.15
8.14
8.13
8.12
8.11
Next Page
1 = Additional Next Page(s) will follow
0 = Last page
0
0
0
0
0
Acknowledge
1 = Successful receipt of link word
0 = No successful receipt of link word
Message Page 1 = Message page
0 = Unformatted page
Acknowledge2
1 = Able to act on the information
0 = Not able to act on the information
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
8.10:0
Message Field
RO
000_0000_0000
Register 9 (9h) – 1000Base-T Control
M9999-101309-1.1
October 2009
38
MICREL [ MICREL SEMICONDUCTOR ]
