hi everybody..
please give me solution for follwing.

i m interfacing dm9000 ethernet controller ic with
microcontoller

i have used memory mapping for interfacing it.

cmd pin is connected to adress line A2
Chip sellect CS is generated by A17=0,A18=1,A19=0
AD0 to AD15 lines are used for address data port of
dm9000
so veriable DMADDR is at address 40000h
& DMDATA is at address 40004h;

Read write lines of microcontroller are properly
connected to dm9000

in this way can i access the address & data ports of
dm 9000 by accessing DMADDR & DMDATA?
Please help!!!!
Regards

Rohan Patil

__________________________________________________________
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I have a project about to start with LPC2214 and DM9000E for Enet interface, but I have external memory.

What CPU are you using? Are you trying to get the DM9000 to access the SRAM inside the LPC part? Not sure if any of the LPC parts have DMA pins for such a purpose.

Chris.

----- Original Message -----
From: rohan patil
To: l...
Sent: Tuesday, April 18, 2006 11:36 PM
Subject: [lpc2000] DM9000 interface
hi everybody..
please give me solution for follwing.

i m interfacing dm9000 ethernet controller ic with
microcontoller

i have used memory mapping for interfacing it.

cmd pin is connected to adress line A2
Chip sellect CS is generated by A17=0,A18=1,A19=0
AD0 to AD15 lines are used for address data port of
dm9000
so veriable DMADDR is at address 40000h
& DMDATA is at address 40004h;

Read write lines of microcontroller are properly
connected to dm9000

in this way can i access the address & data ports of
dm 9000 by accessing DMADDR & DMDATA?
Please help!!!!
Regards

Rohan Patil

__________________________________________________________
Yahoo! India Matrimony: Find your partner now. Go to http://yahoo.shaadi.com
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