TABLE OF CONTENTS
FEATURES ........................................................................................................................................1
GENERAL DESCRIPTION .................................................................................................................2
PIN CONFIGURATION.......................................................................................................................5
DESCRIPTION OF PIN FUNCTIONS .................................................................................................6
FUNCTIONAL DESCRIPTION..........................................................................................................10
PCI INTERFACE..........................................................................................................................12
TRANSMIT/RECEIVE ARBITRATION FOR PCI BUS .................................................................12
SYSTEM ERRORS ......................................................................................................................12
BIG/LITTLE ENDIAN SUPPORT ..................................................................................................12
POWER DOWN MODE ....................................................................................................................14
DMA OPERATION .......................................................................................................................14
TRANSMIT DMA..............................................................................................................................14
Direct Queuing Method.................................................................................................................14
Fragment List Method ..................................................................................................................16
Interrupting Transmit Chain..........................................................................................................18
Transmit Buffer Full .....................................................................................................................18
Transmit Underrun .......................................................................................................................18
Exception to Underrun ReTransmission........................................................................................18
Maximum Transmit Size and Burst Rate.......................................................................................18
RECEIVE DMA.................................................................................................................................19
Free Buffer Pool Method...............................................................................................................19
Adding Receive Buffers to the Pool...............................................................................................20
Receive Lookahead Method .........................................................................................................20
Stopping the Receive DMA...........................................................................................................25
Maximum Receive Size and Burst Rate ........................................................................................25
MAC OPERATION ...........................................................................................................................26
MII MANAGEMENT INTERFACE .................................................................................................32
EEPROM INTERFACE.................................................................................................................32
JUMPER OPTIONS (EEPROM/RAM)...........................................................................................33
Advanced Configuration and Power Interface (ACPI) Support .......................................................33
Wake-Up Events and Notification .................................................................................................33
EPIC Power States.................................................................................................................34
D3(Cold1) Software Driver Requirements .....................................................................................35
Supporting Power Management Options.......................................................................................35
PME Generates a PCI Bus Interrupt .............................................................................................35
Initial Power-On Reset (POR).......................................................................................................35
Special Power Management Mode................................................................................................36
POWER DOWN MODE ...............................................................................................................36
SOFT RESET ..............................................................................................................................37
CONFIGURATION ...........................................................................................................................37
Mapping of Control Functions.......................................................................................................37
Mapping of Flash RAM Functions.................................................................................................37
DMA DESCRIPTOR BITS DESCRIPTION........................................................................................39
TRANSMIT DMA DESCRIPTOR BITS DESCRIPTION .................................................................39
RECEIVE DMA DESCRIPTOR BITS DESCRIPTION....................................................................41
CONTROL REGISTER MAP/REGISTERS DECODE........................................................................43
CONFIGURATION REGISTERS MAP..............................................................................................44
3
SMSC [ SMSC CORPORATION ]
