User`s manual

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QDK™
Renesas RX with HEW
state-machine.com/rx
3 The Renesas RX CPU
This section provides a very quick overview of the Renesas RX CPU and its features relevant to the QP
framework.
3.1 RX CPU Register Set
The RX CPU has sixteen general-purpose 32-bit registers, nine 32-bit control registers, and one 64-bit
accumulator used for DSP instructions.
Figure 8: RX CPU register set
3.1.1 The Processor Status Word (PSW) Register
The 32-bit Processor Status Word (PSW) register (see Figure 9) deserves some extra attention.
Figure 9: RX Processor Status Word (PSW) register
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