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16:28, 30 September 2010 The [[Schneiderware Real Time Clock]] is a battery-backed RTC, published by german magazine [[CPC Schneider International]] as part of their [[Schneiderware]] DIY series. The plain PCB, or the fully assembled board were also available via mail-order.
The [[ECB Bus]] connector of the board is intended to be plugged into the [[Schneiderware Basisplatine]], but it could be also wired directly to the CPCs Expansion Port.
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The Real Time Clock is somewhat similar to the [[Real Time Clock|CPCI Real Time Clock]] released in a special issue of the same magazine, but not identical (the RTC chip has different pin-outs, and some of it's 4bit registers are working slightly different, the leap-year bits, for example).
Databoxes: '''UHR8000''' RTC-RAM-driver in 10-1986 (hex listing, plus [[Hisoft Devpac]] source code) (caution this version uses incorrect I/O addresses FBE1-FBE3), '''UHRC000X''' RTC-ROM-driver in 4-1987 (this version uses correct I/O addresses FBE2-FBE4).
== I/O Ports ==
{|{{Prettytable|width: 700px; font-size: 2em;}}
|Address (default) || Address (alternate) || Usage
|-
|FBE2h || BUGGED:FBE1h || Schneiderware RTC index/control (W)
|-
|FBE3h || BUGGED:FBE2h || Schneiderware RTC data 4bit (W)
|-
|FBE4h || BUGGED:FBE3h || Schneiderware RTC data 4bit (R)
|-
|}
== Pictures ==
<gallery>
File:Schneiderware RTC Schematic.png|RTC Schematic
File:Schneiderware 5 Echtzeituhr (component side).jpg|RTC/Echtzeituhr (component side)
File:Schneiderware 5 Echtzeituhr (solder side).jpg|RTC/Echtzeituhr (solder side)
</gallery>
== Article ==
* [[Schneiderware Real Time Clock|Schneiderware #5 Echtzeituhr (Real Time Clock)]] (10/1986 pages 78-85, corrections on 12/1986 page 6 and 3/1987 page 9, 9/1987 page 9,
== Datasheets ==
* [[Media:M5832 Datasheet.pdf|M5832 Datasheet]] - Real time clock