Features - Cypress CY91590 Series Hardware Manual

8.2 Features

This section explains the features of the DMA controller (DMAC).

Channels : 16 channels

Address space : 32-bit address space (4 GB)

Transfer mode : Block/burst transfer

Address update : Increment/Decrement/Fixed (Address increment/decrement range : 1, 2, 4)

Transfer size : 8-bits, 16-bits, 32-bits

Block size : 1 to 16

Transfer count : 1 to 65535

Transfer request :

Software transfer requests

Transfer requests by peripheral interrupt (for the transfer request by peripheral interrupt, you should select
interrupt by channels. See "Chapter: Generation and Clearing of DMA Transfer Requests".)

Transfer stop request : Transfer stop request by interrupts

Reload function : All channels can be specified for reload

Transfer source address reload

Transfer destination address reload

Transfer count reload

Priority :

Fixed (ch.0 > ch.1 > ch.2 > ch.3 > ch.4 > ch.5 > ch.6 > ch.7 > ch.8 > ch.9 > ch.10 > ch.11 > ch.12 > ch.13 > ch.14
> ch.15)

Round robin

Interrupt request : Normal completion interrupt requests, abnormal completion interrupt requests, and transfer suspend
interrupt requests by transfer stop requests can be generated
CY91590 Series FR81S Hardware Manual, Document Number: 002-05526 Rev. *B
DMA Controller (DMAC)
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