參數(shù)資料
型號： KSZ9021RNI
廠商： Micrel Inc
文件頁數(shù)： 34/58頁
文件大?。?/td> 0K
描述： IC TXRX 10/100/1000 SGL 48QFN
標(biāo)準(zhǔn)包裝： 260
類型： 收發(fā)器
驅(qū)動器/接收器數(shù)： 8/8
規(guī)程： 千兆位以太網(wǎng)
電源電壓： 3.135 V ~ 3.465 V
安裝類型： 表面貼裝
封裝/外殼： 48-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 48-QFN（7x7）
包裝： 托盤
配用： 576-3874-ND - BOARD EVALUATION FOR KSZ9021RN
其它名稱： 576-3978
KSZ9021RNI-ND
Micrel, Inc.
KSZ9021RL/RN
February 13, 2014
4
Revision 1.2
Contents
Pin Configuration – KSZ9021RL .......................................................................................................................................... 8
Pin Description – KSZ9021RL.............................................................................................................................................. 9
Strapping Options – KSZ9021RL....................................................................................................................................... 14
Pin Configuration – KSZ9021RN........................................................................................................................................ 15
Pin Description – KSZ9021RN ........................................................................................................................................... 16
Strapping Options – KSZ9021RN ...................................................................................................................................... 21
Functional Overview ........................................................................................................................................................... 22
Functional Description: 10Base-T/100Base-TX Transceiver .......................................................................................... 23
100Base-TX Transmit....................................................................................................................................................... 23
100Base-TX Receive ........................................................................................................................................................ 23
Scrambler/De-scrambler (100Base-TX only).................................................................................................................... 23
10Base-T Transmit ........................................................................................................................................................... 23
10Base-T Receive ............................................................................................................................................................ 23
Functional Description: 1000Base-T Transceiver............................................................................................................ 24
Analog Echo Cancellation Circuit ..................................................................................................................................... 24
Automatic Gain Control (AGC) ......................................................................................................................................... 24
Analog-to-Digital Converter (ADC) ................................................................................................................................... 24
Timing Recovery Circuit.................................................................................................................................................... 25
Adaptive Equalizer ............................................................................................................................................................ 25
Trellis Encoder and Decoder ............................................................................................................................................ 25
Functional Description: 10/100/1000 Transceiver Features ........................................................................................... 25
Auto MDI/MDI-X................................................................................................................................................................ 25
Pair- Swap, Alignment, and Polarity Check...................................................................................................................... 26
Wave Shaping, Slew Rate Control and Partial Response................................................................................................ 26
PLL Clock Synthesizer...................................................................................................................................................... 26
Auto-Negotiation ................................................................................................................................................................. 26
RGMII Interface .................................................................................................................................................................... 28
RGMII Signal Definition .................................................................................................................................................... 29
RGMII Signal Diagram ...................................................................................................................................................... 29
RGMII Pad Skew Registers .............................................................................................................................................. 30
RGMII In-band Status ....................................................................................................................................................... 32
MII Management (MIIM) Interface....................................................................................................................................... 32
Interrupt (INT_N).................................................................................................................................................................. 32
LED Mode............................................................................................................................................................................. 33
Single LED Mode .............................................................................................................................................................. 33
Tri-color Dual LED Mode .................................................................................................................................................. 33
NAND Tree Support ............................................................................................................................................................ 34
Power Management ............................................................................................................................................................ 35
Power Saving Mode.......................................................................................................................................................... 35
Software Power Down Mode ............................................................................................................................................ 35
Chip Power Down Mode ................................................................................................................................................... 35
Register Map........................................................................................................................................................................ 35
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