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参数资料
| 型号： | R8C22 |
| 厂商： | Renesas Technology Corp. |
| 英文描述： | MCU |
| 中文描述： | 微控制器 |
| 文件页数： | 14/52页 |
| 文件大小： | 471K |
| 代理商： | R8C22 |
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R8C/22 Group, R8C/23 Group
3. Memory
Rev.1.10 Mar 16, 2007
REJ03B0097-0110
Page 14 of 48
3.2
R8C/23 Group
Figure 3.2 shows a Memory Map of R8C/23 Group. The R8C/23 Group has 1 Mbyte of address space from
address 00000h to FFFFFh.
The internal ROM (program 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 ROM (data flash) is allocated addresses 02400h to 02BFFh.
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 them. 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/23 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
02BFFh
03000h
0SSSSh
02400h
Internal ROM
(data flash)
(1)
Reserved area
(2)
Internal ROM
(4)
(program ROM)
ZZZZZh
NOTES:
1. Data flash block A (1 Kbyte) and B (1 Kbyte) are shown.
2. SFR area for CAN is allocated addresses 01300h to 0147Fh.
3. The blank regions are reserved. Do not access locations in these regions.
4. Do not use addresses 20000h to 23FFFh because these areas are used for the emulator debugger. Refer to
24. Notes on
Emulator Debugger
.
Part Number
Internal ROM
Size
Address 0YYYYh Address ZZZZZh
08000h
04000h
04000h
04000h
04000h
R5F21236DFP, R5F21236JFP, R5F21236KFP
R5F21237DFP, R5F21237JFP, R5F21237KFP
R5F21238DFP, R5F21238JFP, R5F21238KFP
R5F2123AJFP, R5F2123AKFP
R5F2123CJFP, R5F2123CKFP
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
Address 0SSSSh
-
-
-
037FFh
03BFFh
Internal RAM
相关PDF资料 |
PDF描述 |
|---|---|
| R8C23 | MCU |
| R8C26 | SINGLE-CHIP 16-BIT CMOS MCU |
| R8C27 | SINGLE-CHIP 16-BIT CMOS MCU |
| R8C28 | SINGLE-CHIP 16-BIT CMOS MCU |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| R8C-22 | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:MCU |
| R8C22_08 | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:RENESAS MCU |
| R8C-22_1 | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:MCU R8C FAMILY / R8C/2x SERIES |
| R8C23 | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:MCU |
| 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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