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DM1883A

Part Number	DM1883A
Manufacturer	Western Digital
Description	Direct Memory Access Controller
Published	Dec 9, 2019
Detailed Description	WESTERN DIGITAL c oRp o R A T oN DM1883A/B Direct Memory Access Controller FEATURES o AUTOMATIC DAISY CHAINING OF BU...
Datasheet	DM1883A PDF File

Overview

WESTERN DIGITAL c oRp o R A T oN DM1883A/B Direct Memory Access Controller FEATURES o AUTOMATIC DAISY CHAINING OF BUS AND INTERRUPT ACKNOWLEDGE SIGNALS o AUTO LOAD OPTION • SINGLE +5 VDC POWER SUPPLY o B BIT BI-DIRECTIONAL DATA BUS o TRUE OR COMPLEMENT DATA BUS • B CPU ADDRESSABLE DMAC REGISTERS • B CPU ADDRESSABLE DEVICE REGISTERS • AUTOMATIC GENERATION OF DEVICE CS DURING DMA AND CPU DEVICE ACCESSES • .
256K MEMORY ADDRESSING o 64K PROGRAMMABLE PAGE PROTECTION o BYTE OR WORD DMA TRANSFERS o INTERRUPT AND BUS REQUEST CAPABILITIES o END-OF-BLOCK SHUT OFF BY DMAC o TIME-OUT INTERRUPT CAPABILITY o SINGLE CLOCK INPUT o CS, RE, WE, AO-A3 ADDRESSING • STOP REQUEST INPUT TO DELAY INTERRUPT OR B...

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