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ADSP-BF526 Vil-Vol-Vh-Voh levels

Question asked by raquib on Mar 26, 2013
Latest reply on Apr 16, 2013 by Nabeel

Dear Madam/Sir,

I am designing a board using ADSP-BF526 (400Mhz).

For the same I used the reference of the ADSP eval board as mentioned on the site.

For Booting the memories provided are M58WR032KB, NAND02G, MT48H32M16 and SST25WF040.

Mentioned below is the table of Vih Vil Vol Voh I have created for the verification of the design

SUPPLY VOLTAGEVILVIHVOLVOH
ADSP VDDINT1.4
ADSP VDDRTC3.3
ADSP VDDMEM1.80.61.10.41.35
ADSP VDDUSB1.80.61.10.41.35
ADSP VDDOTP2.5
ADSP VDDEXT1.80.61.10.41.35
MT48H32M161.80.31.440.21.62
M58WR032KB1.80.41.40.11.7
NAND02G1.80.41.40.11.7
FPGA, PORT 0,13.30.820.42.9
FPGA, PORT 2,31.80.380.80.451.35

Please notice there are violation in the following

  1. 1. ADSP Vol and Vil of MT48H32M16
  2. 2. ADSP Voh and Vih of MT48H32M16, M58WR032KB, NAND02G

As these are the same parts that are being used in the eval board, please clarify on the above mentioned violations. Or please sugest an alternate way of getting around the Violation

Also along with the ADSP I am interfacing a Spartan FPGA which will on the EBIU bus. Here to I have a violation of Vil(fpga) and Vol(adsp). Please can you help with the same.

 

Thanks Regards

Raquib Akolawala

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