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以太网IP核说明书.doc

发布:2015-09-10约字共46页下载文档
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以太网IP核说明书 目录 1 3 Introduction 3 2 4 IO Ports 4 2.1 Ethernet Core IO ports 4 2.1.1 Host Interface Ports 4 2.1.2 PHY Interface ports 6 3 8 Registers 8 3.1 MODER (Mode Register) 9 3.2 INT_SOURCE (Interrupt Source Register) 11 3.3 INT_MASK (Interrupt Mask Register) 12 3.4 IPGT (Back to Back Inter Packet Gap Register) 13 3.5 IPGR1 (Non Back to Back Inter Packet Gap Register 1) 13 3.6 IPGR2 (Non Back to Back Inter Packet Gap Register 2) 14 3.7 PACKETLEN (Packet Length Register) 14 3.8 COLLCONF (Collision and Retry Configuration Register) 14 3.9 TX_BD_NUM (Transmit BD Number Reg.) 15 3.10 CTRLMODER (Control Module Mode Register) 15 3.11 MIIMODER (MII Mode Register) 16 3.12 MIICOMMAND (MII Command Register) 17 3.13 MIIADDRESS (MII Address Register) 17 3.14 MIITX_DATA (MII Transmit Data) 18 3.15 MIIRX_DATA (MII Receive Data) 18 3.16 MIISTATUS (MII Status Register) 18 3.17 MAC_ADDR0 (MAC Address Register 0) 19 3.18 MAC_ADDR1 (MAC Address Register 1) 19 3.19 HASH0 (HASH Register 0) 20 3.20 HASH1 (HASH Register 1) 20 3.21 TXCTRL (Tx Control Register) 20 4 21 Operation 21 4.1 Resetting Ethernet Core 22 4.2 Host Interface Operation 22 4.2.1 Configuration Registers 23 4.2.2 Buffer Descriptors (BD) 25 4.2.3 Frame Transmission 27 4.2.4 Frame Reception 28 4.3 TX Ethernet MAC 28 4.4 RX Ethernet MAC 29 4.5 MAC Control Module 29 4.5.1 Control Frame Detection 30 4.5.2 Control Frame Generation 31 4.5.3 TX/RX MAC Interface 32 4.5.4 PAUSE Timer 33 4.5.5 Slot Timer 33 4.6 MII Management Module 34 4.6.1 Operation Controller 35 4.6.2 Shift Registers Operation 37 4.6.3 Output Control Module Operation 37 4.6.4 Clock Generator Operation 38 5 39 Architecture 39 5.1 Host Interface 41 5.2 TX Ethernet MAC 41 5.3 RX Ethernet MAC 41 5.4 MAC Control Module 41 5.4.1 Control Frame Detector 41 5.4.2 Control Frame Generator 41 5.4.3 TX/RX Ethernet MAC Interface 41 5.4.4 PAUSE Timer 41 5.4.5 Slot Timer 41 5.5 MII Management Module 42 5.5.1 Operation Control Module 42 5.5.2 Output Control Module 42 5.5.3 Shif
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