DMA controller for DMA transferring image data for one page with

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry

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Details

395116, 395842, 395843, 395846, 358444, 358468, H04N 132, G06F 1500

Patent

active

058057781

ABSTRACT:
A DMA transfer controller for DMA transferring one page of image data without increasing a burden on a CPU is provided with address holders for holding addresses for each of a plurality of DMA channels. An address selector selects an address for an operating DMA channel and an address adding value prescriber prescribes an address adding value at an arbitrary value. An address adding value selector selects an address adding value between prescribed address adding values and a fixed adding value and an address adder adds such an address adding value to an output address value. A latch address selector selects an initial address value when initializing a DMA transfer and an address value produced after an address adding value has been added for providing such an address to address holders when DMA transfer is started.

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