DM9000A
APPLICATION NOTES
Preliminary 2
Version: DM9000A-AN-V121
November 27, 2007
1
INTRODUCTION.................................................................................................6
1.1 General Description..................................................................................................................6
2
GENERAL
PROCESSOR
BUS
DESCRIPTION...............................................7
2.1 Typical Signal Connection with Processor Bus.........................................................................7
2.1.1 Pin Function Table .............................................................................................................8
2.1.2 Processor Parallel Bus 8/ 16-Bit Mode Setting..................................................................8
2.1.3 Command Type...................................................................................................................9
3
SYSTEM
HARDWARE
DESIGN......................................................................10
3.1 How to Select Chip..................................................................................................................10
3.2 Strap Pins Setting....................................................................................................................10
3.3 Serial EEPROM Operation.....................................................................................................10
3.3.1 EEPROM Format............................................................................................................. 11
3.4 GPIO Pins Setting...................................................................................................................15
3.5 Schematic Reference Design ...................................................................................................17
3.5.1 Application Schematics for 8-Bit and 16-Bit....................................................................17
4
RESET
OPERATION
AND
PHY
POWER-DOWN
MODE ...........................19
4.1 Power On Reset.......................................................................................................................19
4.2 Software Reset.........................................................................................................................19
4.3 PHY Power Down Mode .........................................................................................................19
4.3.1 GPR PHYPD Setting ........................................................................................................20
4.3.2 PHY Register Setting........................................................................................................20
5
HOW
TO
PROGRAM
DM9000A ......................................................................21
5.1 How to Read/ Write DM9000A Register .................................................................................21
5.2 Driver Initializing Steps ..........................................................................................................22
5.3 How to Read/ Write EEPROM Data .......................................................................................23
5.3.1 HOWTO Read EEPROM Data ......................................................................................23
5.3.2 HOWTO Write EEPROM Data ......................................................................................24
5.4 How to Read/ Write PHY Register ..........................................................................................26
5.4.1 HOWTO Read PHY Register..........................................................................................26
5.4.2 HOWTO Write PHY Register .........................................................................................27
5.5 How to Transmit Packets ........................................................................................................28
