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CDP1877

GE
Part Number CDP1877
Manufacturer GE
Description Programmable Interrupt Controller
Published Feb 22, 2017
Detailed Description CMOS Peripherals _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ CDP1877, CDP1877C CASCAi5E iR7 iRS iRS IR4 iR3 iRl...
Datasheet PDF File CDP1877 PDF File

CDP1877
CDP1877


Overview
CMOS Peripherals _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ CDP1877, CDP1877C CASCAi5E iR7 iRS iRS IR4 iR3 iRl! iRi iRO TPA TPB MWR MRD VSS I 28 VDD 2 27 8US7 3 26 8US6 4 25 BUS 5 5 24 8US4 6 23 8US 3 7 22 8US2 8 21 BUSI 9 20 BUSO 10 19 CS/Ax II 18 CS/Ay 12 17 CS 13 16 cs 14 15 iNT TOP VIEW 92CS-34371 TERMINAL ASSIGNMENT Programmable Interrupt Controller (PIC) Features: • Compatible with CDP1800 series • Programmable long branch vector address and vector interval • 8 levels of interrupt per chip • Easily expandable • Latched interrupt requests • Hard wired interrupt priorities • Memory mapped • Multiple chip select inputs to minimize address space requirements The RCA-COP1877 and CDP1877C.
are programmable 8level interrupt controllers designed for use in CDP1800series microprocessor systems.
They provide added versatilty by extending the number of permissible interrupts from 1 to N in increments of 8.
When a high to low transition occurs on any of the PIC ...



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