KSZ9031RNX Datasheet, PDF (4/75 Pages) Micrel Semiconductor – Gigabit Ethernet Transceiver with RGMII Support

Micrel, Inc.
KSZ9031RNX
Contents
General Description ................................................................................................................................................................ 1
Features .................................................................................................................................................................................. 1
Functional Diagram ................................................................................................................................................................. 1
Features (Continued) .............................................................................................................................................................. 2
Applications ............................................................................................................................................................................. 2
Ordering Information ............................................................................................................................................................... 2
Revision History ...................................................................................................................................................................... 3
Contents .................................................................................................................................................................................. 4
List of Figures.......................................................................................................................................................................... 7
List of Tables ........................................................................................................................................................................... 8
Pin Configuration..................................................................................................................................................................... 9
Pin Description ...................................................................................................................................................................... 10
Strapping Options ................................................................................................................................................................. 15
Functional Overview.............................................................................................................................................................. 16
Functional Description: 10Base-T/100Base-TX Transceiver ................................................................................................ 17
100Base-TX Transmit.......................................................................................................................................................................... 17
100Base-TX Receive........................................................................................................................................................................... 17
Scrambler/De-Scrambler (100Base-TX only) ...................................................................................................................................... 17
10Base-T Transmit .............................................................................................................................................................................. 17
10Base-T Receive ............................................................................................................................................................................... 17
Functional Description: 1000Base-T Transceiver ................................................................................................................. 18
Analog Echo-Cancellation Circuit ........................................................................................................................................................ 18
Automatic Gain Control (AGC) ............................................................................................................................................................ 18
Analog-to-Digital Converter (ADC) ...................................................................................................................................................... 19
Timing Recovery Circuit ...................................................................................................................................................................... 19
Adaptive Equalizer............................................................................................................................................................................... 19
Trellis Encoder and Decoder ............................................................................................................................................................... 19
Functional Description: 10/100/1000 Transceiver Features ................................................................................................. 19
Auto MDI/MDI-X .................................................................................................................................................................................. 19
Pair-Swap, Alignment, and Polarity Check .......................................................................................................................................... 20
Wave Shaping, Slew-Rate Control, and Partial Response .................................................................................................................. 20
PLL Clock Synthesizer ........................................................................................................................................................................ 20
Auto-Negotiation ................................................................................................................................................................... 20
RGMII Interface ..................................................................................................................................................................... 22
RGMII Signal Definition ....................................................................................................................................................................... 23
RGMII Signal Diagram......................................................................................................................................................................... 23
RGMII Pad Skew Registers ................................................................................................................................................................. 23
RGMII In-Band Status ......................................................................................................................................................................... 27
MII Management (MIIM) Interface......................................................................................................................................... 27
Interrupt (INT_N) ................................................................................................................................................................... 28
October 2012
4
M9999-103112-1.0