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i don't understand the syntax ((typedef *) address value)

Ras Sharif

hi Everybody,
i copy and paste a line of code bellow as an example:

"#define USB (( USB_TypeDef *) USB_BASE)"

( suppose #define USB_BASE 0x0C000 )

i don't understand the "(( USB_TypeDef *) USB_BASE)"?
why the *, the pointer operator, is placed with type inside parenthesis?

thanks,
Ras

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