參數(shù)資料
型號： R5F21245SDFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52
封裝： 10 X 10 MM, 0.65 MM PITCH, PLASTIC, LQFP-52
文件頁數(shù)： 11/61頁
文件大?。?/td> 529K
代理商： R5F21245SDFP
R8C/24 Group, R8C/25 Group
3. Memory
Rev.3.00
Feb 29, 2008
Page 17 of 51
REJ03B0117-0300
3.2
R8C/25 Group
Figure 3.2 is a Memory Map of R8C/25 Group. The R8C/25 group has 1 Mbyte of address space from addresses
00000h to FFFFFh.
The internal ROM (program ROM) is allocated lower addresses, beginning with address 0FFFFh. For example, a
48-Kbyte internal ROM area is allocated addresses 04000h to 0FFFFh.
The fixed interrupt vector table is allocated addresses 0FFDCh to 0FFFFh. They store the starting address of each
interrupt routine.
The internal ROM (data flash) is allocated addresses 02400h to 02BFFh.
The internal RAM area is allocated higher addresses, beginning with address 00400h. For example, a 2-Kbyte
internal RAM is allocated addresses 00400h to 00BFFh. The internal RAM is used not only for storing data but
also for calling subroutines and as stacks when interrupt requests are acknowledged.
Special function registers (SFRs) are allocated addresses 00000h to 002FFh. The peripheral function control
registers are allocated here. All addresses within the SFR, which have nothing allocated are reserved for future use
and cannot be accessed by users.
Figure 3.2
Memory Map of R8C/25 Group
Undefined instruction
Overflow
BRK instruction
Address match
Single step
Watchdog timer/oscillation stop detection/voltage monitor
(Reserved)
Reset
Part Number
Internal ROM
Internal RAM
Size
Address 0YYYYh
R5F21254SNFP, R5F21254SNXXXFP,
R5F21254SDFP, R5F21254SDXXXFP,
R5F21254SNLG, R5F21254SNXXXLG
R5F21255SNFP, R5F21255SNXXXFP,
R5F21255SDFP, R5F21255SDXXXFP
R5F21256SNFP, R5F21256SNXXXFP,
R5F21256SDFP, R5F21256SDXXXFP,
R5F21256SNLG, R5F21256SNXXXLG
R5F21257SNFP, R5F21257SNXXXFP,
R5F21257SDFP, R5F21257SDXXXFP
R5F21258SNFP, R5F21258SNXXXFP,
R5F21258SDFP, R5F21258SDXXXFP
16 Kbytes
24 Kbytes
32 Kbytes
48 Kbytes
64 Kbytes
007FFh
00BFFh
00DFFh
00FFFh
FFFFFh
0FFFFh
0YYYYh
00400h
002FFh
00000h
Internal ROM
(program ROM)
Internal RAM
SFR
(Refer to 4. Special
Function Registers
(SFRs))
0FFFFh
0FFDCh
Address 0XXXXh
Address 1ZZZZh
Size
1 Kbyte
2 Kbytes
2.5 Kbytes
3 Kbytes
Internal ROM
(data flash)(1)
NOTES:
1. Data flash block A (1 Kbyte) and B (1 Kbyte) are shown.
2. The blank regions are reserved. Do not access locations in these regions.
0XXXXh
02400h
02BFFh
Internal ROM
(program ROM)
1ZZZZh
13FFFh
0C000h
0A000h
08000h
04000h
相關(guān)PDF資料
PDF描述
R5F21245SNXXXFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52
R5F21255SDXXXFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52
R5F21256SNXXXFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52
R5F21248SNXXXFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52
R5F21248SDXXXFP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP52
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
R5F21245SDFP#V2 制造商:Renesas Electronics Corporation 功能描述:R8C/24 24+0/2 52LQFP 10X10 -40 制造商:Renesas Electronics Corporation 功能描述:R8C/24 24+0/2 52LQFP 10X10 -40 TO +85 - Trays 制造商:Renesas Electronics Corporation 功能描述:IC MCU 16BIT 24KB FLASH 52LQFP
R5F21245SDXXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU
R5F21245SDXXXLG 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU
R5F21245SNFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU
R5F21245SNFP#U0 制造商:Renesas Electronics Corporation 功能描述:MCU 16-Bit R8C CISC 24KB Flash 3.3V/5V 52-Pin LQFP Tray 制造商:Renesas Electronics 功能描述:MCU 16-Bit R8C CISC 24KB Flash 3.3V/5V 52-Pin LQFP Tray Tray 制造商:Renesas 功能描述:MCU 16-Bit R8C CISC 24KB Flash 3.3V/5V 52-Pin LQFP Tray
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