0 sram dma unit (sdma), 1 introduction, 2 overview – Intel CONTROLLERS 413808 User Manual
Page 442
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Intel
®
413808 and 413812—SRAM DMA Unit (SDMA)
Intel
®
413808 and 413812 I/O Controllers in TPER Mode
Developer’s Manual
October 2007
442
Order Number: 317805-001US
5.0
SRAM DMA Unit (SDMA)
5.1
Introduction
This chapter describes the operation and control of the SRAM DMA (SDMA) Unit.
5.2
Overview
The SRAM DMA (SDMA) unit provides a means for memory to be transferred between
local memory (SRAM) and host memory through the PCIe bus. The SDMA provides two
separate channels (HostToLocal and LocalToHost) that operate independently from one
another.
The HostToLocal channel performs DMA operations from Host Memory to Local Memory
(SRAM). The LocalToHost channel performs DMA operations from Local Memory to Host
Memory (SRAM).
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