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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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AM79C978VC/W 데이터시트(PDF) 102 Page - Advanced Micro Devices |
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AM79C978VC/W 데이터시트(HTML) 102 Page - Advanced Micro Devices |
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102 / 261 page  102 Am79C978 CSR125^ MAC Enhanced Configuration Control BCR2^ Miscellaneous Configuration BCR4^ LED0 Status BCR5^ LED1 Status BCR6^ LED2 Status BCR7^ LED3 Status BCR9^ Full-Duplex Control BCR18^ Bus and Burst Control BCR19 EEPROM Control and Status BCR20 Software Style BCR22^ PCI Latency BCR23^ PCI Subsystem Vendor ID BCR24^ PCI Subsystem ID BCR25^ SRAM Size BCR26^ SRAM Boundary BCR27^ SRAM Interface Control BCR32^ Internal PHY Control and Status BCR33^ Internal PHY Address BCR35^ PCI Vendor ID BCR36 PCI Power Management Capabilities (PMC) Alias Register BCR37 PCI DATA Register 0 (DATA0) Alias Register BCR38 PCI DATA Register 1 (DATA1) Alias Register BCR39 PCI DATA Register 2 (DATA2) Alias Register BCR40 PCI DATA Register 3 (DATA3) Alias Register BCR41 PCI DATA Register 4 (DATA4) Alias Register BCR42 PCI DATA Register 5 (DATA5) Alias Register BCR43 PCI DATA Register 6 (DATA6) Alias Register BCR44 PCI DATA Register 7 (DATA7) Alias Register BCR45 OnNow Pattern Matching Register 1 BCR46 OnNow Pattern Matching Register 2 BCR47 OnNow Pattern Matching Register 3 BCR48 LED4 Status BCR49 PHY Select n Running Registers These registers are intended to be used by the device driver software after the Am79C978 controller is run- ning to access status information and to pass control information. The following is a list of the registers that would typi- cally need to be periodically read and perhaps written during the normal running operation of the Am79C978 controller within a system. Each of these registers con- tains control bits, or status bits, or both. RAP Register Address Port CSR0 Controller Status CSR3 Interrupt Masks and Deferral Control CSR4 Test and Features Control CSR5 Extended Control and Interrupt CSR7 Extended Control and Interrupt2 CSR112 Missed Frame Count CSR114 Receive Collision Count BCR32 Internal PHY Control and Status BCR33 Internal PHY Address BCR34 Internal PHY Management Data n Test Registers These registers are intended to be used only for testing and diagnostic purposes. Those registers not included in any of the above lists can be assumed to be intended for diagnostic purposes. PCI Configuration Registers PCI Vendor ID Register Offset 00h The PCI Vendor ID register is a 16-bit register that iden- tifies the manufacturer of the Am79C978 controller. AMD’s Vendor ID is 1022h. Note that this Vendor ID is not the same as the Manufacturer ID in CSR88 and CSR89. The Vendor ID is assigned by the PCI Special Interest Group. The PCI Vendor ID register is located at offset 00h in the PCI Configuration Space. It is read only. This register is the same as BCR35 and can be written by the EEPROM. PCI Device ID Register Offset 02h The PCI Device ID register is a 16-bit register that helps identify the Am79C978 controller within AMD's product line. The Am79C978 Device ID is 2001h. Note that this Device ID is not the same as the part number in CSR88 and CSR89. The Device ID is assigned by |
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