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RX230 Datasheet(PDF) 35 Page - Renesas Technology Corp |
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RX230 Datasheet(HTML) 35 Page - Renesas Technology Corp |
35 / 177 page R01DS0261EJ0110 Rev.1.10 Page 35 of 177 Oct 30, 2015 RX230 Group, RX231 Group 2. CPU 2. CPU Figure 2.1 shows register set of the CPU. Figure 2.1 Register Set of the CPU Note 1. The stack pointer (SP) can be the interrupt stack pointer (ISP) or user stack pointer (USP), according to the value of the U bit in the PSW. R15 R14 R13 R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 R0 (SP) *1 General-purpose register b31 b0 DSP instruction register b71 b0 ACC0 (Accumulator 0) ACC1 (Accumulator 1) USP (User stack pointer) ISP (Interrupt stack pointer) INTB (Interrupt table register) PC (Program counter) PSW (Processor status word) BPC (Backup PC) BPSW (Backup PSW) FINTV (Fast interrupt vector register) FPSW (Floating-point status word) Control register b31 b0 EXTB (Exception table register) |
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