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R5F5630ECDFB Datasheet(PDF) 69 Page - Renesas Technology Corp |
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R5F5630ECDFB Datasheet(HTML) 69 Page - Renesas Technology Corp |
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69 / 165 page  R01DS0060EJ0100 Rev.1.00 Page 69 of 168 Sep 13, 2011 RX630 Group 2. CPU 2. CPU The RX CPU has sixteen general-purpose registers, nine control registers, and one accumulator used for DSP instructions. 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. 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) R15 R14 R13 R12 R11 R10 R9 R8 R7 R6 R5 R4 R3 R2 R1 R0 (SP)*1 General-purpose register Control register b31 b0 b31 b0 DSP instruction register b63 b0 ACC (Accumulator) |
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