Set “Disable power saving” as the default for Register 1Fh bit [10].
Corrected LED1 (pin 31) definition for Activity in LED mode 01.
Added Symbol Error to MII/RMII Receive Error description and Register 15h – RXER Counter.
Added a 100pF capacitor on REXT (pin 10) in Pin Description table.
1.2
7/18/08
Added Automotive Qualified part number to Ordering Information.
Added maximum case temperature.
Added thermal resistance (θ
JC
).
Added chip maximum current consumption.
1.3
12/11/09
Added Automotive Qualified part number, KSZ8041NL EAM, to Ordering Information.
Changed MDIO hold time (min) from 10ns to 4ns.
Added LED drive current.
Renamed Register 3h bits [3:0] to “manufacturer’s revision number” and changed default value to
“Indicates silicon revision.”
Updated RMII output delay for CRSDV and RXD[1:0] output pins.
Added support for Asymmetric PAUSE in register 4h bit [11].
Added control bits for 100Base-TX preamble restore (register 14h bit [7]) and 10Base-T preamble
restore (register 14h bit [6]).
Changed strapping pin definition for CONFIG[2:0] = 100 from “PCS Loopback” to “MII 100Mbps
Preamble Restore.”
Corrected MII timing for t
RLAT
, t
CRS1
, t
CRS2
.
Added KSZ8041RNL device and updated entire data sheet accordingly.
1.4
01/19/10
Removed part number (KSZ8041NL EAM) from Ordering Information.
Removed chip maximum current consumption.
September 2010
3
M9999-090910-1.4
Micrel, Inc.
KSZ8041NL/RNL
Contents
General Description .............................................................................................................................................................. 1
Features ................................................................................................................................................................................. 2
Ordering Information ............................................................................................................................................................ 2
List of Figures........................................................................................................................................................................ 7
List of Tables ......................................................................................................................................................................... 8
SQE and Jabber Function (10Base-T only)...................................................................................................................... 21
MII Data Interface (KSZ8041NL only) .............................................................................................................................. 23
MII Signal Definition (KSZ8041NL only) ........................................................................................................................... 24
Receive Data Valid (RXDV).......................................................................................................................................... 25
Receive Data [3:0] (RXD[3:0]) ...................................................................................................................................... 25
Carrier Sense (CRS) .................................................................................................................................................... 25
Reduced MII (RMII) Data Interface................................................................................................................................... 25
RMII Signal Definition ....................................................................................................................................................... 26
RMII Signal Diagram......................................................................................................................................................... 27
HP Auto MDI/MDI-X.......................................................................................................................................................... 28
Power Management.......................................................................................................................................................... 30
Power Saving Mode ..................................................................................................................................................... 30
Power Down Mode ....................................................................................................................................................... 30
Reference Circuit for Power and Ground Connections .................................................................................................... 31
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