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IA6805E2-PDW40I Datasheet(PDF) 3 Page - InnovASIC, Inc |
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IA6805E2-PDW40I Datasheet(HTML) 3 Page - InnovASIC, Inc |
3 / 33 page IA6805E2 29 August 2007 Microprocessor Unit As of Production Version 00 Description The IA6805E2 (CMOS) Microprocessor Unit (MPU) is a low cost, low power MPU. It features a CPU, on-chip RAM, parallel I/O compatibility with pins programmable as input or output. The following paragraphs will further describe this system block diagram and design in more detail. PROGRAM COUNTER LOW 112x8 RAM ADDRESS DRIVE MUX BUS DRIVE CPU PORT A REG OSCILLATOR DATA DIR REG PORT B REG DATA DIR REG CPU CONTROL ALU BUS CONTROL STACK POINTER CONDITION CODE REGISTER INDEX REGISTER ACCUMULATOR PROGRAM COUNTER HIGH TIMER CONTROL PRESCALER TIMER/ COUNTER PA0 PA7 PA6 PA5 PA4 PA3 PA2 PA1 PB0 PB7 PB6 PB5 PB4 PB3 PB2 PB1 PA0 OSC1 OSC2 TIMER RESET_N LI IRQ_N B0 B7 B6 B5 B4 B3 B2 B1 A8 A12 A11 A10 A9 RW_N DS AS 8A 5 6 5 8 8 X CC SP PCH PCL PORT A I/O LINES PORT B I/O LINES MULTIPLEXED ADDRESS DATA BUS ADDRESS BUS ADDRESS STROBE DATA STROBE READ/WRITE Copyright © 2007 IA211081401-03 www.Innovasic.com Customer Support: Figure 1. System Block Diagram Page 3 of 33 1-888-824-4184 © |
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