
Micrel, Inc.
KSZ8041NL/RNL
September 2010
36
M9999-090910-1.4
Register Description (Continued)
Address
Name
Description
Mode
(1)
Default
Register 7h – Auto-Negotiation Next Page
7.15
Next Page
1 = Additional next page(s) will follow
0 = Last page
RW
0
7.14
Reserved
RO
0
7.13
Message Page
1 = Message page
0 = Unformatted page
RW
1
7.12
Acknowledge2
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
000_0000_0001
Register 8h – Link Partner Next Page Ability
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
Acknowledge2
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
000_0000_0000
Register 14h – MII Control
14.15:8
Reserved
RO
0000_0000
14.7
100Base-TX
Preamble
Restore
1 = Restore received preamble to MII output
(random latency)
0 = Consume 1-byte preamble before sending
frame to MII output for fixed latency
RW
0 or
1 (if CONFIG[2:0] = 100)
See “Strapping Options” section
for details.
14.6
10Base-T
Preamble
Restore
1 = Restore received preamble to MII output
0 = Remove all 7-bytes of preamble before
sending frame (starting with SFD) to MII
output
RW
0
14.5:0
Reserved
RO
00_0001
Register 15h – RXER Counter
15.15:0
RXER Counter
Receive error counter for Symbol Error frames
RO/SC
0000h