Re: [cosmacelf] (no subject)
- No, a 1852 is the byte wide I/O device. The 1854 is the UART.
From: Philip Pemberton [mailto:philpem@...]
Sent: Friday, October 25, 2002 18:04
Subject: Re: [cosmacelf] (no subject)
> The IMEX group is searching for the following devices:The UART?
> color adaptor for 1861Someone made a colour adapter for the CDP1861? Anyone got any info on this
Yahoo! Groups Sponsor
Visit the COSMAC ELF website at http://www.cosmacelf.com
To unsubscribe from this group, send an email to:
Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[Non-text portions of this message have been removed]
> > color adaptor for 1861on this
> Someone made a colour adapter for the CDP1861? Anyone got any info
> fabled device?Hi,
indeed I do. I looked into my old folder with a collecton of 18xx
datasheets and there it is: CDP1862, a chip which interfaces
directly with the CDP1861. It takes the 1861's output signal and
accesses a color map to mix the monochrome signals with color
- ... and some more interesting chips:
The CDP1869 and CDP1870/CDP1876 are a two chip color display
controler for up to 40 x 24 Characters. The CDP1870 or CDP1876
generates the video signal. There is not much info on the difference
between the CDP1870 and the CDP1876. My guess is, that they are the
same chip for different color signal types (NTSC and PAL).
Added to the display capabilities their features include also
hardware scrolling, sound generation (!) and no involvance of the
CPU in screen refresh.
- Hello Richard,
--- In cosmacelf@y..., "cdp1861" <richard.dienstknecht@m...> wrote:
> ... and some more interesting chips:
> The CDP1869 and CDP1870/CDP1876 are a two chip color display
> controler [...]
Say, you won't happen to have some info on the cdp1864 PAL TV
interface or the cdp 1858 4bit latch in your stack of info?
Why i ask:
The european (PAL) clones of the RCA Studio II use these chips, and
it seems the old (monochrome) StudioII programs will work on these
too. The only info i have on these chips is a list of pinouts of
(almost?) all RCA chips. Those people out there who are coding
on 'Hanimex MPT-02' emulation would appreciate some info on this
chip (pin functions, register map...)
If anyone is interested in the pinouts, i can upload scans to the
list's file area, of course...
- Sorry, but I don't. I did not even see an european Studio II. Some
time around 1980 I bought a 'surprise bag' in a Radio Shack - and
what was in it? A working Studio II. Sadly it 'died' long ago. Back
here in Germany I never found any people with an Elf. After more
than 20 years this group is my first contact with other Elf users.
- mc71de wrote:
> --- In cosmacelf@y..., "cdp1861" <richard.dienstknecht@m...> wrote:I think I might have it. Just a sec...
>> ... and some more interesting chips:
>> The CDP1869 and CDP1870/CDP1876 are a two chip color display
>> controler [...]
> Say, you won't happen to have some info on the cdp1864 PAL TV
> interface or the cdp 1858 4bit latch in your stack of info?
Yup. I've got it as a 339KB PDF file, downloaded from Freetradezone.com.