參數(shù)資料
型號(hào)： R5F21153DSP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDSO20
封裝： 4.40 X 6.50 MM, 0.65 MM PITCH, PLASTIC, LSSOP-20
文件頁數(shù)： 7/42頁
文件大?。?/td> 664K
代理商： R5F21153DSP
Rev.2.00
Jan 30, 2006
Page 13 of 37
REJ03B0102-0200
R8C/14 Group, R8C/15 Group
3. Memory
3.
Memory
3.1
R8C/14 Group
Figure 3.1 is a Memory Map of R8C/14 Group. The R8C/14 group provides 1-Mbyte 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 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 is allocated addresses 00400h to 007FFh. The internal RAM is used not only for
storing data but for calling subroutines and stacks when interrupt request is acknowledged.
Special function registers (SFR) are allocated addresses 00000h to 002FFh. The peripheral function
control registers are allocated them. All addresses, which have nothing allocated within the SFR, are
reserved area and cannot be accessed by users.
Figure 3.1
Memory Map of R8C/14 Group
Undefined Instruction
Overflow
BRK Instruction
Address Match
Single Step
Watchdog TimerOscillation Stop DetectionVoltage Monitor 2
Address Break
(Reserved)
Reset
Part Number
Internal ROM
Internal RAM
Size
0YYYYh
R5F21144SP, R5F21144DSP
R5F21143SP, R5F21143DSP
R5F21142SP, R5F21142DSP
16 Kbytes
12 Kbytes
8 Kbytes
0C000h
0D000h
0E000h
1 Kbytes
768 bytes
512 bytes
007FFh
006FFh
005FFh
FFFFFh
0FFFFh
0YYYYh
0XXXXh
00400h
002FFh
00000h
Internal ROM
Expansion Area
Internal RAM
SFR
(See 4. Special Function
Register (SFR))
0FFFFh
0FFDCh
Size
0XXXXh
NOTES:
1. Blank spaces are reserved. No access is allowed.
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R5F21143DSP 16-BIT, FLASH, 20 MHz, MICROCONTROLLER, PDSO20
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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