參數(shù)資料
型號: R5F212G4SDFP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
封裝: 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32
文件頁數(shù): 5/45頁
文件大?。?/td> 340K
代理商: R5F212G4SDFP
R8C/2G Group
3. Memory
Rev.1.00
Apr 04, 2008
Page 11 of 41
REJ03B0223-0100
3.
Memory
Figure 3.1 is a Memory Map of R8C/2G Group. The R8C/2G group has 1 Mbyte of address space from addresses
00000h to FFFFFh.
The internal ROM is allocated lower addresses, beginning with address 0FFFFh. For example, a 16-Kbyte internal
ROM area is allocated addresses 0C000h to 0FFFFh.
The fixed interrupt vector table is allocated addresses 0FFDCh to 0FFFFh. They store the starting address of each
interrupt routine.
The internal RAM is allocated higher addresses beginning with address 00400h. For example, a 1-Kbyte internal RAM
area is allocated addresses 00400h to 007FFh. 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 3.1
Memory Map of R8C/2G Group
Undefined instruction
Overflow
BRK instruction
Address match
Single step
Watchdog timer/voltage monitor/comparator
(Reserved)
Reset
00400h
002FFh
00000h
Internal RAM
SFR
(Refer to 4. Special
Function Registers
(SFRs))
0FFFFh
0FFDCh
NOTE:
1. The blank regions are reserved. Do not access locations in these regions.
FFFFFh
0FFFFh
0YYYYh
Internal ROM
(program ROM)
0XXXh
Part Number
Internal ROM
Internal RAM
Size
R5F212G4SNFP, R5F212G4SDFP
R5F212G5SNFP, R5F212G5SDFP
R5F212G6SNFP, R5F212G6SDFP
16 Kbytes
24 Kbytes
32 Kbytes
0C000h
0A000h
08000h
512 bytes
1 Kbyte
005FFh
007FFh
Address 0YYYYh
Address 0XXXXh
相關(guān)PDF資料
PDF描述
R5F212G5SDFP 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
R5F212G5SNFP 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP32
R5F212J0SNSP 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO20
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R5F212J0SNSP 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO20
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