Sharp Compet 17 User Manual

Contents
Section Page
Title & Contents (this page) 1
Notes, Gate Identification & Signal Names 2
Block Diagram 3
Timing 4
Keyboard & P-Cycle Generator 5
Control (Major Operation Flags) 6
Control (F, J & G Flags) 7
Control (State Matrix) 8
Control (Outputs) 9
Registers 10
Arithmetic 11
Decimal Point Counters 12
Display 13
Power Supply 14
Timing Diagram 15
IC Pinouts & Gate Construction 16
Physical Layout and Connectors 17
Sharp Compet 17
Calculator
Sharp Compet 17 Calculator
Section: Title and Contents
Page: 1 Rendition: 2020 May 20
This schematic has been derived through
reverse engineering.
This is not the manufacter’s schematic, nor
is it based on the manufacturer’s schematic.

Sharp Compet 17 Specifications

General

Brand	Sharp
Model	Compet 17
Category	Calculator
Language	English

Summary

Sharp Compet 17 Calculator Introduction

General Notes and Logic Explanations

Signal Name Definitions

Explains the meaning of various signal names used in the schematics.

Gate Identification and Logic Elements

Identifies gate symbols and logic elements by their gate ID and description.

P-Cycle and Manual Control Operations

Describes single-stepping through major state cycles and manual operation control.

System Block Diagram

Timing Schematics

Keyboard and P-Cycle Generator Circuits

Control Logic: Major Operation Flags

Control Logic: F, J, and G Flags

Control Logic: State Matrix

Control Logic: Outputs

Register Circuits

Arithmetic Logic Circuits

Decimal Point Counter Circuits

Display Circuitry

Power Supply Schematic

Timing Waveform Diagrams

Integrated Circuit Pinouts and Gate Construction

Physical Layout and Connector Pinouts