Novag Chess Champion MK I

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Schachcomputer der Marke Novag aus dem Jahre 1978. Ursprünglicher Verkaufspreis umgerechnet rund 125 €.

Technische Daten:

Prozessor:        F8 (Fairchild 3850), 1.78 MHz, 8 Bit                           
Speicher:         2 KB ROM, 256 bytes RAM                         
Bibliothek:       None                               
Programmierer:    David B Goodrich & Associates 
Elo:              985                                         
Stellungstests:   ---- Colditz, ---- BT-2450                   
Verwandt:                      
Zugeingabe:       Tastatur
Zugausgabe:       4-stellige 7-Segment LED Anzeige
Stromversorgung:  Netz = 
Spielstufen:      6 
Maße (BxTxH):     
Sonstiges:        The Novag Chess Champion MK I program is a pirate copy of the ROM in the CompuChess 

Auszug aus dem Kommentar zur Emulation des MK I von den M.E.S.S. Quelltexten Version 0127

 mk1.c

Driver file to handle emulation of the Novag/Videomaster Chess Champion MK 1 by PeT mess@utanet.at 2000,2001.

Minor updates by Wilbert Pol - 2007

Hardware descriptions: - An F8 3850 CPU accompanied by a 3853 memory interface

 Variations seen:
 - MOSTEK MK 3853N 7915 Philippines ( static memory interface for f8)
 - MOSTEK MK 3850N-3 7917 Philipines (fairchild f8 cpu)
 - 3850PK F7901 SINGAPORE (Fairchild F8 CPU)
 - 3853PK F7851 SINGAPORE (static memory interface for F8)

- 2KB 2316 compatible ROM

 Variations seen:
 - Signetics 7916E C48091 82S210-1 COPYRIGHT
 - RO-3-8316A 8316A-4480 7904 TAIWAN

- 2 x 2111 256x4 SRAM to provide 256 bytes of RAM

 Variations seen:
 - AM9111 BPC / P2111A-4 7851

- 16 keys placed in a 4 x 4 matrix - Power on switch - L/S switch. This switch is directly tied to the RESET pin of the F8 CPU.

 This allows the user to reset the CPU without destroying the RAM contents.

- A 4 character 11 segment digit display using a 15 pin interface. Of the 15

 pins 3 pins are not connected, so three segments are never used and this
 leaves a standard 7 segments display with a dot in the lower right.

- The digit display is driven by two other components:

 - SN75492N MALAYSIA 7840B
 - ULN2033A 7847

- Hardware addressing is controlled by a NBF4001AE. - Unknown if there is a speaker.

TODO: - Figure out exact clock frequency