[sebhc] H8 configuration

Carroll Waddell CarrollWaddell at sc.rr.com
Thu May 27 19:04:21 CDT 2004

I'm working on the same configuration, but I plan to have both the H8-5 
and the H8-4 in the machine. The cassette interface is port 370Q, the 
H8-5 terminal address is 372Q, and the H17 is 170Q-174Q. You can remove 
the 8251 on the cassette board to disable the interface.
I'm pretty sure that if you don't have an H8-4, the software will use 
the 372Q port on the H8-5. The H17 board that I bought was missing the 
H17 ROM and the 2114 memory chips. When I locate them, I'm going to set 
up a similiar system.

Dwight K. Elvey wrote:

> I'm going to be setting up my older H8 to have the
>H17 board installed. The problem is that this machine
>has only the serial/cassette board ( H8-5 ) and not
>the H8-4 serial board. Is this configuration possible?
>I know that on the H89, the cassette and H17 are on
>conficting addresses. Can one configure this older
>setup to run without using the H8-4 board? Is there
>a way to share or disable the cassette address on the
>H8-5 board?
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