Features
3-2 ADSP-214xx SHARC Processor Hardware Reference
Features
The external port has the following features.
• Supports access to the external memory by core and DMA accesses.
The external memory address space is divided in to four banks. Any
bank can be programmed as either asynchronous or synchronous
memory.
• An asynchronous memory interface which communicates with
SRAM, FLASH, and other devices that meet the standard asyn-
chronous SRAM access protocol.
• A SDRAM controller that supports a glue-less interface with any of
the standard SDRAMs.
• A DDR2 controller that supports a glue-less interface with any of
the standard DDR2.
DMA Data Access Yes Yes Yes
DMA Channels 2 2 2
DMA Chaining Yes Yes Yes
Boot Capable Yes No No
Clock Operation SDCLK or
DDR2CLK
SDCLK DDR2CLK
Table 3-1. External Port Specifications (Cont’d)
Feature AMI SDRAM Interface DDR2 Interface
To Next Page
Loading...
Need help?
General
