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