Maplins 8bit Input Port: Difference between revisions
Created page with "A simple 8bit Input port from Maplin. Intended (among others) for use with the Maplins Weather Satellite Receiver. == Scanned Article == * [[Media:Maplins Amstrad 8bit ..." |
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A simple 8bit Input port from [[Maplin]]. Intended (among others) for use with the [[Maplins Weather Satellite Receiver]]. | A simple 8bit Input port from [[Maplin]]. Intended (among others) for use with the [[Maplins Weather Satellite Receiver]]. | ||
== Technical == | |||
Can be mapped to Port F8F0h..F8FFh (jumper select-able). F8F0h (with a mirror at F8F1h) can be considered as default (this address is also recommended as 8bit-input address in the Weather Satellite source code). | |||
Note that the original article specifes addresses F8E0h..F8EFh instead of F8F0h..F8FFh - that is wrong, the schematic connects A4 to EN1, so ports are accessed when Address Bit4=1. | |||
== Schematic == | |||
<gallery> | |||
Image:Maplin 8bit Input Port.png|Schematic | |||
</gallery> | |||
== Scanned Article == | == Scanned Article == | ||
* [[Media:Maplins Amstrad 8bit Input Port (Project Book 20).pdf|Amstrad 8bit Input Port (for use, among others, with the Satellite Receiver) - project 20.b]] (pdf) | * [[Media:Maplins Amstrad 8bit Input Port (Project Book 20).pdf|Amstrad 8bit Input Port (for use, among others, with the Satellite Receiver) - project 20.b]] (pdf) | ||
[[Category:Peripherals]] | |||
Latest revision as of 08:15, 22 August 2014
A simple 8bit Input port from Maplin. Intended (among others) for use with the Maplins Weather Satellite Receiver.
Technical
Can be mapped to Port F8F0h..F8FFh (jumper select-able). F8F0h (with a mirror at F8F1h) can be considered as default (this address is also recommended as 8bit-input address in the Weather Satellite source code).
Note that the original article specifes addresses F8E0h..F8EFh instead of F8F0h..F8FFh - that is wrong, the schematic connects A4 to EN1, so ports are accessed when Address Bit4=1.
Schematic
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Schematic
