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参数资料
| 型号： | R8C23 |
| 厂商： | Renesas Technology Corp. |
| 英文描述： | MCU |
| 中文描述： | 微控制器 |
| 文件页数： | 13/52页 |
| 文件大小： | 471K |
| 代理商： | R8C23 |
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R8C/22 Group, R8C/23 Group
3. Memory
Rev.1.10 Mar 16, 2007
REJ03B0097-0110
Page 13 of 48
3.
Memory
3.1
R8C/22 Group
Figure 3.1 shows a Memory Map of R8C/22 Group. The R8C/22 Group has 1 Mbyte of address space from
address 00000h to FFFFFh.
The internal ROM is allocated lower addresses, beginning with address 0FFFFh. For example, a 48-Kbyte internal
ROM 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 RAM is allocated higher addresses, beginning with address 00400h. For example, a 2.5 Kbyte internal
RAM is allocated addresses 00400h to 00DFFh. 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 (SFR) are allocated addresses 00000h to 002FFh and 01300h to 0147Fh (SFR area for
CAN). The peripheral function control registers are allocated here. All addresses within the SFR, which have
nothing allocated are reserved for future user and cannot be accessed by users.
Figure 3.1
Memory Map of R8C/22 Group
Undefined instruction
Overflow
BRK instruction
Address match
Single step
Watchdog timeroscillation stop detectionvoltage detection
Address break
(Reserved)
Reset
FFFFFh
0FFFFh
0YYYYh
0XXXXh
01300h
02000h
00400h
002FFh
00000h
Internal ROM
(program ROM)
Expanding area
Internal RAM
SFR
(Refer to 4. Special
Function Registers
(SFRs))
0FFFFh
0FFDCh
NOTES:
1. SFR area for CAN is allocated addresses 01300h to 0147Fh.
2. The blank regions are reserved. Do not access locations in these regions.
3. Do not use addresses 20000h to 23FFFh because these areas are used for the emulator debugger. Refer to
24. Notes on
Emulator Debugger
.
Reserved area
(1)
Internal ROM
(3)
(program ROM)
Part Number
Internal ROM
Size
Address 0YYYYh Address ZZZZZh
08000h
04000h
04000h
04000h
04000h
R5F21226DFP, R5F21226JFP, R5F21226KFP
R5F21227DFP, R5F21227JFP, R5F21227KFP
R5F21228DFP, R5F21228JFP, R5F21228KFP
R5F2122AJFP, R5F2122AKFP
R5F2122CJFP, R5F2122CKFP
32 Kbytes
48 Kbytes
64 Kbytes
96 Kbytes
128 Kbytes
-
-
13FFFh
1BFFFh
23FFFh
Internal RAM
Address 0XXXXh
00BFFh
00DFFh
00FFFh
00FFFh
00FFFh
2 Kbytes
2.5 Kbytes
3 Kbytes
5 Kbytes
6 Kbytes
Size
ZZZZZh
Internal RAM
03000h
0SSSSh
Address 0SSSSh
-
-
-
037FFh
03BFFh
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相关代理商/技术参数 |
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| R8C24 | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU |
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| R8C26 | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MCU |
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