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SAMV71Q21 データシート(PDF) 28 Page - Microchip Technology

部品番号 SAMV71Q21
部品情報  SAM E70/S70/V70/V71 Family Silicon Errata and Data Sheet Clarification
PDF  41 Pages
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メーカー  MICROCHIP [Microchip Technology]
ホームページ  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

SAMV71Q21 データシート(HTML) 28 Page - Microchip Technology

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15.
SDRAM Controller (SDRAMC)
15.1
SDRAM Controller Scrambling Use Limitation
The scrambling/unscrambling feature of the SDRAM Controller (SDRAMC) has a use limitation.
Workaround
The read of a scrambled area must be performed with the same type of access done during the write of
this area. As an example, it is recommended to write using 32-bit words and read 32-bit words.
Affected Silicon Revisions
A
B
X
X
15.2
USB and SDRAM Concurrent Access Issue
USB module functionality is adversely affected with concurrent SDRAM access.
Workaround
Ensure that no concurrent module operations when using both SDRAM and USB.
Affected Silicon Revisions
A
B
X
X
SAM E70/S70/V70/V71 Family
SDRAM Controller (SDRAMC)
© 2018 Microchip Technology Inc.
Datasheet Errata
DS80000767C-page 28



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