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From: jones@optilink.UUCP (Marvin Jones)
Newsgroups: comp.sys.m68k
Subject: Re: 68HC11 and Buffalo Monitor
Summary: config register
Message-ID: <3080@optilink.UUCP>
Date: 1 Feb 90 18:14:42 GMT
References: <10696@zodiac.ADS.COM>
Distribution: usa
Organization: Optilink Corporation, Petaluma, CA
Lines: 26

In article <10696@zodiac.ADS.COM>, jdevries@zodiac.ADS.COM (Jeff De Vries) writes:
> My question is: Does 
> Motorola have available 68HC11's with the BUFFALO monitor already
> masked into the ROM?  If not, can I override the internal ROM with
> an external ROM containing the monitor?

I believe the answer to both questions is yes. I know that if you purchase a 
ROMless HC11, and subsequently enable the ROM using the ROMON bit in the 
Config register ($x03F:1), there is a high probability that you will find some 
other Motorola customer's program there.  This is stated in the HC11 Reference 
Manual.  It seems to me that a Motorola rep told us that sometimes Buffalo 
would be there, as well.  But I can't see any part number listing for an HC11 
with Buffalo.  But I think that is what they use in their evaluation kits. 
Best bet is to call Motorola Microcontroller Div. in Austin or call their 
Freeware BBS there.  

As mentioned earlier, the 2nd bit of the Config register will enable/disable 
the internal ROM space.  This solves the second question.  

Hope this helps. 
 
-- 
     Marvin Jones     Optilink Corp.     Petaluma, CA     707.795.9444 X206 
     uucp:  {tekbspa, pyramid, pixar}!optilink!jones 
     cis:  71320,3637     aol:  mjones