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HP-41CX w/ XF-Module - just curious
07-27-2019, 05:14 AM
Post: #25
RE: HP-41CX w/ XF-Module - just curious
(07-26-2019 03:23 PM)Monte Dalrymple Wrote:  In the CL page 5 accesses never appear on the external bus. The hardware knows that page 5 is internal, so the address is modified before going to the bus driver. This is what prevents bus conflicts with an inserted Time Module. The ROM in the Time Module itself is never accessed, only the peripheral registers are.

Good design indeed!

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RE: HP-41CX w/ XF-Module - just curious - Ángel Martin - 07-27-2019 05:14 AM



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