KSZ8041NLJ_10 MICREL [Micrel Semiconductor], KSZ8041NLJ_10 Datasheet - Page 3

• Manufacturer Part Number: KSZ8041NLJ_10
• Description: 10/100 Ethernet Transceiver with Extended Temperature Support
• Manufacturer: MICREL [Micrel Semiconductor]

Micrel, Inc.
Contents
Pin Configuration .................................................................................................................................................................. 6
Pin Description ...................................................................................................................................................................... 7
Strapping Options ............................................................................................................................................................... 10
Functional Description ....................................................................................................................................................... 11
April 2010
100Base-TX Transmit....................................................................................................................................................... 11
100Base-TX Receive........................................................................................................................................................ 11
PLL Clock Synthesizer...................................................................................................................................................... 11
Scrambler/De-scrambler (100Base-TX only).................................................................................................................... 11
10Base-T Transmit ........................................................................................................................................................... 11
10Base-T Receive ............................................................................................................................................................ 11
SQE and Jabber Function (10Base-T only)...................................................................................................................... 12
Auto-Negotiation ............................................................................................................................................................... 12
MII Management (MIIM) Interface .................................................................................................................................... 14
Interrupt (INTRP) .............................................................................................................................................................. 14
MII Data Interface ............................................................................................................................................................. 14
MII Signal Definition.......................................................................................................................................................... 15
Reduced MII (RMII) Data Interface................................................................................................................................... 16
RMII Signal Definition ....................................................................................................................................................... 17
HP Auto MDI/MDI-X.......................................................................................................................................................... 18
Power Management.......................................................................................................................................................... 20
Reference Clock Connection Options .............................................................................................................................. 20
Transmit Clock (TXC) ................................................................................................................................................... 15
Transmit Enable (TXEN) .............................................................................................................................................. 15
Transmit Data [3:0] (TXD[3:0]) ..................................................................................................................................... 15
Receive Clock (RXC).................................................................................................................................................... 15
Receive Data Valid (RXDV).......................................................................................................................................... 16
Receive Data [3:0] (RXD[3:0]) ...................................................................................................................................... 16
Receive Error (RXER) .................................................................................................................................................. 16
Carrier Sense (CRS) .................................................................................................................................................... 16
Collision (COL) ............................................................................................................................................................. 16
Reference Clock (REF_CLK) ....................................................................................................................................... 17
Transmit Enable (TX_EN) ............................................................................................................................................ 17
Transmit Data [1:0] (TXD[1:0]) ..................................................................................................................................... 17
Carrier Sense/Receive Data Valid (CRS_DV).............................................................................................................. 17
Receive Data [1:0] (RXD[1:0]) ...................................................................................................................................... 17
Receive Error (RX_ER) ................................................................................................................................................ 17
Collision Detection ........................................................................................................................................................ 18
Straight Cable ............................................................................................................................................................... 18
Crossover Cable ........................................................................................................................................................... 19
Power Saving Mode ..................................................................................................................................................... 20
Power Down Mode ....................................................................................................................................................... 20
3
M9999-040110-1.0
KSZ8041NLJ