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AWR2243: Configuration differences between XAWR2243 and AWR2243P for cascaded function

Part Number: AWR2243

Tool/software:

We have a number of older boards with XAWR2243P (date/lot code 9BZDY69) devices running in a cascaded manner.  We have recently built new boards using AWR2243P devices, date code Feb 2021 (code 12ZDRJ9  583A).  They do not function when using the same configuration program.  Can you let us know what the differences are between the two devices as far as configuration?  Are there other differences that require changes to the board interface or signals?  Thank you.