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Network Device

Example: Ethernet, USB, Firewire, 802.11.
For high throughput should likely be bus master or use a DMA channel.
More importantly: DMA requires less staging RAM or FIFO in device.
Shared RAM pool: statistical multiplexing gain.
The device driver will set up a circular buffer or linked list of buffers.

35: (C) 2008-11, DJ Greaves, University of Cambridge, Computer Laboratory.