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P9235A-RB Layout Guide
Flash Circuit
In the flash programming application, P9235A-RB only contains the bootloader, the other program and data are stored into the flash. When
P9235A-RB works, it will fetch the instructions or data from flash frequently. Therefore, for keeping signal integrity and minimize the EMI, it's
recommended that: 1) the trace of SS, SCLK, MOSI, and MISO should be as short as possible. 2) Place the trace of SS, SCLK, MOSI, and
MISO above or below the ground plane. 3) No bare pad is placed on the trace of SS, SCLK, MOSI, and MISO.
Figure 12. Flash Circuit
© 2019 Integrated Device Technology, Inc
13
March 19, 2019
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