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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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H8S/2218 数据表(PDF) 87 Page - Renesas Technology Corp |
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H8S/2218 数据表(HTML) 87 Page - Renesas Technology Corp |
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87 / 750 page  Section 2 CPU Rev.6.00 Jun. 03, 2008 Page 39 of 698 REJ09B0074-0600 2.4 Register Configuration The H8S/2000 CPU has the internal registers shown in figure 2.6. There are two types of registers: general registers and control registers. Control registers are a 24-bit program counter (PC), an 8-bit extended control register (EXR), and an 8-bit condition code register (CCR). TI2 I1 I0 EXR 76543210 PC 23 0 15 0 7 0 7 0 E0 E1 E2 E3 E4 E5 E6 E7 R0H R1H R2H R3H R4H R5H R6H R7H R0L R1L R2L R3L R4L R5L R6L R7L SP: PC: EXR: T: I2 to I0: CCR: I: UI: Stack pointer Program counter Extended control register Trace bit Interrupt mask bits Condition-code register Interrupt mask bit User bit or interrupt mask bit * Half-carry flag User bit Negative flag Zero flag Overflow flag Carry flag ER0 ER1 ER2 ER3 ER4 ER5 ER6 ER7 (SP) IUI H U N ZV C CCR 76543210 H: U: N: Z: V: C: General Registers (Rn) and Extended Registers (En) Control Registers (CR) Legend: ---- Note: * Cannot be used as an interrupt mask bit in this LSI. Figure 2.6 CPU Registers |
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