Hi A T,
I'm not familiar on how to add the CMSIS-SVD Peripheral Register viewer on Keil, but you could take a look to Kinetis Design Studio which comes with the CMSIS-SVD Peripheral Register viewer that allows you to inspect the Cortex core and peripheral registers. You can find more information about KDS on this link:
New Kinetis Design Studio V3.0.0 available
Hope it helps!
Best Regards,
Carlos Mendoza
Technical Support Engineer
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