DATA PROCESSOR

DATA PROCESSOR

PURPOSE:To optionally select a starting address after the resetting of a CPU by providing an ROM which allows the CPU to send a different address signal to a data bus when a selector outputs an address signal indicating some address. CONSTITUTION:A selector 3 is equipped with input terminal groups 3...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: IWAMI TOMOYUKI
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:PURPOSE:To optionally select a starting address after the resetting of a CPU by providing an ROM which allows the CPU to send a different address signal to a data bus when a selector outputs an address signal indicating some address. CONSTITUTION:A selector 3 is equipped with input terminal groups 3B1-3B4 where an address signal for indicating the 1st address is inputted from the address signal output terminal ADR of a CPU1, and input terminal groups 3B1- 3B4 where an address signal for indicating the 2nd address is inputted. Then when the CPU1 sends out an address signal for specifying the zero address and the selector 3 outputs the address signal for the 2nd address, the CPU1 outputs data for instructing the transmission of the address signal for indicating the 1st address from an ROM5 to the data bus.