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R5F21357CDFP Datasheet(PDF) 14 Page - Renesas Technology Corp |
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R5F21357CDFP Datasheet(HTML) 14 Page - Renesas Technology Corp |
14 / 57 page R8C/35C Group 3. Memory R01DS0006EJ0100 Rev 1.00 Page 14 of 54 Aug. 24, 2010 3. Memory 3.1 R8C/35C Group Figure 3.1 is a Memory Map of R8C/35C Group. The R8C/35C Group has a 1-Mbyte address space from addresses 00000h to FFFFFh. The internal ROM (program ROM) is allocated lower addresses, beginning with address 0FFFFh. For example, a 32-Kbyte internal ROM area is allocated addresses 08000h to 0FFFFh. The fixed interrupt vector table is allocated addresses 0FFDCh to 0FFFFh. The starting address of each interrupt routine is stored here. The internal ROM (data flash) is allocated addresses 03000h to 03FFFh. The internal RAM is allocated higher addresses, beginning with address 00400h. For example, a 2.5-Kbyte internal RAM area is allocated addresses 00400h to 00DFFh. The internal RAM is used not only for data storage but also as a stack area when a subroutine is called or when an interrupt request is acknowledged. Special function registers (SFRs) are allocated addresses 00000h to 002FFh and 02C00h to 02FFFh. Peripheral function control registers are allocated here. All unallocated spaces within the SFRs are reserved and cannot be accessed by users. Figure 3.1 Memory Map of R8C/35C Group 0FFFFh 0FFDCh Notes: 1. Data flash indicates block A (1 Kbyte), block B (1 Kbyte), block C (1 Kbyte), and block D (1 Kbyte). 2. The blank areas are reserved and cannot be accessed by users. FFFFFh 0FFFFh 0YYYYh 0XXXXh 00400h 002FFh 00000h Internal ROM (program ROM) Internal RAM SFR (Refer to 4. Special Function Registers (SFRs)) 02FFFh 02C00h SFR (Refer to 4. Special Function Registers (SFRs)) ZZZZZh Internal ROM (program ROM) 03FFFh 03000h Internal ROM (data flash) (1) 0FFD8h Reserved area Undefined instruction Overflow BRK instruction Address match Single step Watchdog timer, oscillation stop detection, voltage monitor Address break (Reserved) Reset Part Number R5F21354CNFP, R5F21354CDFP R5F21355CNFP, R5F21355CDFP R5F21356CNFP, R5F21356CDFP R5F21357CNFP, R5F21357CDFP R5F21358CNFP, R5F21358CDFP R5F2135ACNFP, R5F2135ACDFP R5F2135CCNFP, R5F2135CCDFP Internal ROM Internal RAM Size Address 0YYYYh Size Address 0XXXXh Address ZZZZZh 16 Kbytes 24 Kbytes 32 Kbytes 48 Kbytes 64 Kbytes 96 Kbytes 128 Kbytes 0C000h 0A000h 08000h 04000h 04000h 04000h 04000h 1.5 Kbytes 2 Kbytes 2.5 Kbytes 4 Kbytes 6 Kbytes 8 Kbytes 10 Kbytes 009FFh 00BFFh 00DFFh 013FFh 01BFFh 023FFh 02BFFh − − − − 13FFFh 1BFFFh 23FFFh |
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