AM79C978 Advanced Micro Devices, AM79C978 Datasheet - Page 255
AM79C978
Manufacturer Part Number
AM79C978
Description
Single-Chip 1/10 Mbps PCI Home Networking Controller
Manufacturer
Advanced Micro Devices
Datasheet
1.AM79C978.pdf
(261 pages)
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CSR78
CSR8
CSR80
CSR82
CSR84
CSR85
CSR86
CSR88
CSR89
CSR9
CSR92
Cycle Frame 26
D
Data Receive Timing 79
Data Symbol RLL25 Encoding 80
Data Symbols 79
Data Transmit Timing 79
DC CHARACTERISTICS OVER COMMER-
CIAL OPERATING RANGES 220
DC CHARACTERISTICS OVER COMMER-
CIAL OPERATING RANGES unless otherwise
specified 220
Description of the Methodology 81
Descriptor DMA Transfers 54
Descriptor Ring Read In Burst Mode 55
Descriptor Ring Write In Burst Mode 56
Descriptor Ring Write In Non-Burst Mode 56
Descriptor Rings 60
Destination Address Handling 66
Detailed Functions 75
Device ID Register 91
Device Select 26
DEVSEL 26
Digital Ground (8 Pins) 32
Digital I/O (Non-PCI Pins) 220
Digital Power (6 Pins) 32
Transmit Ring Length 137
Logical Address Filter 0 125
DMA Transfer Counter and FIFO Threshold
Transmit Descriptor Address Pointer Lower
DMA Address Register Lower 140
DMA Address Register Upper 140
Buffer Byte Counter 140
Chip ID Register Lower 141
Chip ID Register Upper 141
Logical Address Filter 1 125
Ring Length Conversion 141
Control 138
140
Am79C978
Direct Access to the Interface 84
Direct Memory Access (DMA) 2
Direct SRAM Access 82
Disconnect Of Burst Transfer 40
Disconnect Of Slave Burst Transfer - Host Inserts
Wait States 41
Disconnect Of Slave Burst Transfer - No Host
Wait States 40
Disconnect Of Slave Cycle When Busy 40
Disconnect When Busy 40
Disconnect With Data Transfer 46, 47
Disconnect Without Data Transfer 47, 48
DISTINCTIVE CHARACTERISTICS 1
Double Word I/O Mode 97
DVDDA 32
DVDDA_HR 32
DVDDD 32
DVDDRX, DVDDTX 32
DVSSD 32
DVSSX 32
E
EBCS Values 166
EECS 29
EEDET Setting 161
EEDI 29
EEDO 29
EEPROM 86
EEPROM Auto-Detection 84
EEPROM Chip Select 29
EEPROM Data In 29
EEPROM Data Out 29
EEPROM Interface 29, 83, 84
EEPROM MAP 85
EEPROM Map 86
EEPROM Read Functional Timing 231
EEPROM Serial clock 30
EEPROM Timing 223
EEPROM-Programmable Registers 84
EESK 30
Error Detection 66
escriptor Ring Read In Non-Burst Mode 55
Ethernet controllers in the PCnet Family 3
Ethernet Network Interfaces 31
Expansion ROM Read 39
Expansion ROM Transfers 39
External Clock 225
External Clock/Crystal Select 31
F
FIFO Burst Write At End Of Unaligned Buffer 58
5
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