External Port - Analog Devices SHARC ADSP-214 Series Hardware Reference Manual

3 EXTERNAL PORT

The external memory interface provides a glueless interface to external
memories. The asynchronous memory interface and the SDRAM/DDR2
memory that interfaces to the external port is clocked by the SDRAM or
DDR2 clock. The interface specifications are shown in
Table 3-1. External Port Specifications
Feature
Connectivity
Multiplexed Pinout
SRU DAI Required
SRU DAI Default Routing
SRU2 DPI Required
SRU2 DPI Default Routing
Interrupt Control
Protocol
Master Capable
Slave Capable
Transmission Simplex
Transmission Half-Duplex
Transmission Full-Duplex
Access Type
Data Buffer
Core Data Access
ADSP-214xx SHARC Processor Hardware Reference
www.BDTIC.com/ADI
AMI SDRAM Interface
Yes (External Port) Yes (External Port)
No No
N/A N/A
No No
N/A N/A
Yes Yes
Yes Yes
No No
Yes Yes
Yes Yes
No No
Yes Yes
Yes Yes
Table 3-1.
DDR2 Interface
No
No
N/A
No
N/A
Yes
Yes
No
Yes
Yes
No
Yes
Yes
3-1