KSZ8041NLAM MICREL [Micrel Semiconductor], KSZ8041NLAM Datasheet - Page 4

• Manufacturer Part Number: KSZ8041NLAM
• Description: 10Base-T/100Base-TX Physical Layer Transceiver
• Manufacturer: MICREL [Micrel Semiconductor]

Micrel, Inc.
Contents
Pin Configuration .................................................................................................................................................................. 8
Pin Description ...................................................................................................................................................................... 9
Strapping Options ............................................................................................................................................................... 12
Functional Description ....................................................................................................................................................... 13
July 2008
100Base-TX Transmit....................................................................................................................................................... 13
100Base-TX Receive........................................................................................................................................................ 13
PLL Clock Synthesizer...................................................................................................................................................... 13
Scrambler/De-scrambler (100Base-TX only).................................................................................................................... 13
10Base-T Transmit ........................................................................................................................................................... 13
10Base-T Receive ............................................................................................................................................................ 13
SQE and Jabber Function (10Base-T only)...................................................................................................................... 14
Auto-Negotiation ............................................................................................................................................................... 14
MII Management (MIIM) Interface .................................................................................................................................... 16
Interrupt (INTRP) .............................................................................................................................................................. 16
MII Data Interface ............................................................................................................................................................. 16
MII Signal Definition.......................................................................................................................................................... 17
Reduced MII (RMII) Data Interface................................................................................................................................... 18
RMII Signal Definition ....................................................................................................................................................... 19
HP Auto MDI/MDI-X.......................................................................................................................................................... 20
Power Management.......................................................................................................................................................... 22
Reference Clock Connection Options .............................................................................................................................. 22
Transmit Clock (TXC) ................................................................................................................................................... 17
Transmit Enable (TXEN) .............................................................................................................................................. 17
Transmit Data [3:0] (TXD[3:0]) ..................................................................................................................................... 17
Receive Clock (RXC).................................................................................................................................................... 17
Receive Data Valid (RXDV).......................................................................................................................................... 18
Receive Data [3:0] (RXD[3:0]) ...................................................................................................................................... 18
Receive Error (RXER) .................................................................................................................................................. 18
Carrier Sense (CRS) .................................................................................................................................................... 18
Collision (COL) ............................................................................................................................................................. 18
Reference Clock (REF_CLK) ....................................................................................................................................... 19
Transmit Enable (TX_EN) ............................................................................................................................................ 19
Transmit Data [1:0] (TXD[1:0]) ..................................................................................................................................... 19
Carrier Sense/Receive Data Valid (CRS_DV).............................................................................................................. 19
Receive Data [1:0] (RXD[1:0]) ...................................................................................................................................... 19
Receive Error (RX_ER) ................................................................................................................................................ 19
Collision Detection ........................................................................................................................................................ 20
Straight Cable ............................................................................................................................................................... 20
Crossover Cable ........................................................................................................................................................... 21
Power Saving Mode ..................................................................................................................................................... 22
Power Down Mode ....................................................................................................................................................... 22
4
M9999-071808-1.2
KSZ8041NL