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R5F3650ECDFB 数据表(PDF) 29 Page - Renesas Technology Corp |
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R5F3650ECDFB 数据表(HTML) 29 Page - Renesas Technology Corp |
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29 / 112 page  R01DS0015EJ0100 Rev.1.00 Page 29 of 109 Feb 07, 2011 M16C/65C Group 3. Address Space 3.3 Accessible Area in Each Mode Areas that can be accessed vary depending on processor mode and the status of each control bit. Figure 3.3 shows the Accessible Area in Each Mode. In single-chip mode, the SFRs, internal RAM, and internal ROM can be accessed. In memory expansion mode, the SFRs, internal RAM, internal ROM, and external areas can be accessed. Address space is expandable to 4 MB with the memory area expansion function. In microprocessor mode, the SFRs, internal RAM, and external areas can be accessed. Address space is expandable to 4 MB with the memory area expansion function. Allocate ROM to the fixed vector table from FFFDCh to FFFFFh. Figure 3.3 Accessible Area in Each Mode Notes: 1. Do not access reserved areas. 2. The figure above applies under the following conditions: Single-chip mode and memory expansion mode - The PM10 bit in the PM1 register is 1 (addresses 0E000h to 0FFFFh are used as data flash) - The PRG2C0 bit in the PRG2C register is 0 (program ROM 2 enabled) - The PM13 bit in the PM1 register is 1 (all areas in internal RAM, and the program ROM 1 area from 80000h are usable) Microprocessor mode - The PM10 bit is 0 (addresses 0E000h to 0FFFFh are used as the CS2 area) - The PRG2C0 bit is 1 (program ROM 2 disabled) 00000h 0D000h 00400h 0D800h 0E000h 10000h 14000h FFFFFh 28000h 27000h 80000h 00000h 0D000h 00400h 0D800h 0E000h 10000h 14000h FFFFFh Single-Chip Mode Memory Expansion Mode 00000h 0D000h 00400h 0D800h FFFFFh 28000h 27000h Microprocessor Mode Internal ROM (data flash) Internal ROM (program ROM 2) Reserved area Internal ROM (program ROM 1) Reserved area External area External area External area Internal RAM Reserved area SFR SFR Reserved area External area External area Internal RAM Reserved area SFR SFR Reserved area Internal RAM Reserved area SFR SFR Internal ROM (data flash) Internal ROM (program ROM 2) Internal ROM (program ROM 1) Reserved area |
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