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M68ICS08GR датащи(PDF) 140 Page - Freescale Semiconductor, Inc |
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M68ICS08GR датащи(HTML) 140 Page - Freescale Semiconductor, Inc |
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140 / 408 page ![]() Central Processing Unit (CPU) Technical Data MC68HC908GR8 — Rev 4.0 140 Central Processing Unit (CPU) MOTOROLA • 64K byte program/data memory space • 16 addressing modes • Memory-to-memory data moves without using accumulator • Fast 8-bit by 8-bit multiply and 16-bit by 8-bit divide instructions • Enhanced binary-coded decimal (BCD) data handling • Modular architecture with expandable internal bus definition for extension of addressing range beyond 64K bytes • Low-power stop and wait modes 10.4 CPU registers Figure 10-1 shows the five CPU registers. CPU registers are not part of the memory map. Figure 10-1. CPU registers ACCUMULATOR (A) INDEX REGISTER (H:X) STACK POINTER (SP) PROGRAM COUNTER (PC) CONDITION CODE REGISTER (CCR) CARRY/BORROW FLAG ZERO FLAG NEGATIVE FLAG INTERRUPT MASK HALF-CARRY FLAG TWO’S COMPLEMENT OVERFLOW FLAG V1 1 H I N Z C H X 0 0 0 0 7 15 15 15 70 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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