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Conference ricks::dechips

Title:Hudson VLSI
Notice:For Digital Chip Data - CHIPBZ::PRODUCTION$:[DS_INFO...]
Moderator:RICKS::PHIPPS
Created:Wed Feb 12 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:701
Total number of notes:4658

640.0. "Need documentation for 21140 Fast Eth Eval Board" by STAR::STOCKDALE () Mon Jan 27 1997 16:56

I'm looking at the specs for the DEC21140 Evaluation Board and trying
to figure out how this module differs from the DE500-XA, DE500-AA,
DE500-BA that NAC has built.

The "Connecting the DECchip 21140 PCI Fast Ethernet LAN Controller
to the Network: An Application Note", EC-QAR2A-TE, talks about the
hw design aspects of the MII/SYM or the 100BASE-TX modes and
then says 'For more information about the evaluation board, refer to
the DECchip 21140 PCI Fast Ethernet Evaluation Board User Guide'.

The "DECchip 21140 PCI Fast Ethernet Evaluation Board User Guide",
EC-QD2SA-TE, describes the 8-bit general-purpose port for setting
the various operating modes of the EB140 and says that CSR12 controls
this port.  Then it says 'for detailed information about the
general purpose port, refer to the DECchip 21140 PCI Fast Ethernet
LAN Controller Hardware Reference Manual.

The "DECchip 21140 PCI Fast Ethernet LAN Controller Hardware Reference
Manual", EC-QC0CB-TE (which supercedes the EC-QC0CA-TE), says in the
description of CSR12 'Refer to the 21140 application notes for the
details regarding a particular application'.

As near as I can tell there is no documentation that describes how
to program the Evaluation Board.

Is there any such documentation?  Is there some sample code available?

This came up because a CSS group in France is trying to get the VMS
driver for the DE500 to work with the Rockwell RNS2300 which is
supposed to be identical to the EB140 and apparently the only
documentation they have from Rockwell are the aforementioned
specs which don't provide any useful information.

Thanks.

Dick Stockdale (VMS LAN driver development)
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640.1NETRIX::thomasThe Code WarriorMon Jan 27 1997 17:256
The EB140 is very different from all the DE500 variants.

The document you want is EC-QD2SA-TE.PS (specifically look at page 1-7).

You can find this document at
 HIPBZ::PRODUCTION$:[DS_INFO.21140]EC-QD2SA-TE.PS
640.2YIELD::HARRISMon Jan 27 1997 18:078
    re: Note 640.1 by NETRIX::thomas 
    
>You can find this document at
> HIPBZ::PRODUCTION$:[DS_INFO.21140]EC-QD2SA-TE.PS
    
    
    Make that: CHIPBZ::PRODUCTION$:[DS_INFO.21140]EC-QD2SA-TE.PS
    
640.3KAOM25::WALLDEC Is DigitalWed Jan 29 1997 15:354
    We learned this type of cross referencing from MS 8^)
    
    r