AC1040F Datasheet, PDF(3/37 Page) List of Unclassifed Manufacturers – Ultra Low Power 10/100 Quad RMII Ethernet Transceiver

Ultra Low Power 10/100 Quad RMII Ethernet Transceiver

General Description......................................................................................................................................................................... 1

Features.............................................................................................................................................................................................. 1

Block Diagram................................................................................................................................................................................. 1

Pin Diagram - AC104QF................................................................................................................................................................ 5

Pin Descriptions............................................................................................................................................................................... 6

MDI (Media Dependent Interface) Pins.....................................................................................................................................6

RMII (Reduced Media Independent Interface) Pins................................................................................................................7

SMI (Serial Management Interface) Pins ..................................................................................................................................7

Phy Address Pins...........................................................................................................................................................................8

Mode Pins........................................................................................................................................................................................8

LED Pins .........................................................................................................................................................................................8

Power and Ground Pins ................................................................................................................................................................9

Functional Description.................................................................................................................................................................. 10

MAC Interface................................................................................................................................................................................ 10

RMII ...................................................................................................................................................................................................10

SMI ...............................................................................................................................................................................................10

Interrupt .........................................................................................................................................................................................11

Carrier Sense / RX_DV ..............................................................................................................................................................11

Media Interface .............................................................................................................................................................................. 11

10Base-T ...........................................................................................................................................................................................11

Transmit Function........................................................................................................................................................................11

Receive Function .........................................................................................................................................................................11

Link Monitor.................................................................................................................................................................................11

100Base-TX ......................................................................................................................................................................................11

Transmit Function........................................................................................................................................................................11

Parallel to Serial, NRZ to NRZI, and MLT3 Conversion....................................................................................................12

Receive Function .........................................................................................................................................................................12

Baseline Wander Compensation...............................................................................................................................................12

Clock/Data Recovery ..................................................................................................................................................................12

Decoder/De-scrambler ................................................................................................................................................................13

Link Monitor.................................................................................................................................................................................13

100Base-FX ...................................................................................................................................................................................... 13

Transmit Function........................................................................................................................................................................13

Receive Function .........................................................................................................................................................................13

Link Monitor.................................................................................................................................................................................13

Far-End-Fault-Indication (FEFI)...............................................................................................................................................13

10Base-T/100Base-TF/FX .............................................................................................................................................................14

Multi-Mode Transmit Driver.....................................................................................................................................................14

Adaptive Equalizer ......................................................................................................................................................................14

PLL Clock Synthesizer ...............................................................................................................................................................14

Jabber and SQE (Heartbeat).......................................................................................................................................................14

Reverse Polarity Detection and Correction .............................................................................................................................14

Initialization and Setup................................................................................................................................................................. 15

Hardware Configuration................................................................................................................................................................15

Software Configuration ..................................................................................................................................................................15

LEDs ..............................................................................................................................................................................................15

Auto-Negotiation ............................................................................................................................................................................. 15

Parallel Detection...........................................................................................................................................................................16

Diagnostics.......................................................................................................................................................................................16

Loopback Operation....................................................................................................................................................................16

Cable Length Indicator...............................................................................................................................................................16

Reset and Power............................................................................................................................................................................. 16

Clock................................................................................................................................................................................................ 17

Register Descriptions.................................................................................................................................................................... 18

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Altima Communications Inc. reserves the right to make changes to this document without notice.