Analog Devices ADSP-21535 E-KIT LITE 用户手册

The External Bus Interface Unit (EBIU) is connected to 4M x 32 bits of SDRAM 
(16 MB).  This memory is connected to the synchronous memory select 0 
(~SMS0) pin.  Refer to section 

 for information about configuring the 

SDRAM.   

The EBIU is also connected to 272K x 16 bits of flash memory.  This memory is 
connected to the asynchronous memory select (~AMS0) pin.  The DSP can use 
this memory both for booting and storing information during normal operation.  
Refer to section 

 for information about using the flash memory. 

All of the address, data, and control signals are available externally via the 
extender connectors (P1-3).  The pinout of these connectors can be found in 

SPORT0).   is connected to the AD1885 SoundMAX Codec (U7).  Two 3.5mm 
stereo jacks (P5, P6) allow audio to be input and output.  You can supply an audio 
input to the Codec microphone input channel (MIC1) or to the stereo LINE_IN 
input channel.  The jumper settings of JP1 determine the Codec channel driven by 
the input jack (P5).  For information about configuring JP1, see section 

 

SPORT0 is also routed to an off-board connector (P9).  When using the off-board 
connector, the Codec must be held in reset, so that it does not drive any of the 
SPORT0 signals.  The Codec can be held in reset by driving PF15 low or by 
setting up JP2 to always hold the Codec in reset (see section 

).  PF15 must be 

pulled HI (1) for the Codec to function. 

! NOTE: TCLK0 and RCLK0 pins are shorted together using R114 and 

 

 

ADSP-21535 EZ-KIT Lite Evaluation System Manual 

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