參數(shù)資料
型號(hào)： R5F2136CCNFP
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 20 MHz, MICROCONTROLLER, PQFP64
封裝： 10 X 10 MM, 0.50 MM PITCH, PLASTIC, LQFP-64
文件頁(yè)數(shù)： 16/62頁(yè)
文件大小： 581K
代理商： R5F2136CCNFP
R8C/2A Group, R8C/2B Group
3. Memory
Rev.2.10
Nov 26, 2007
Page 21 of 60
REJ03B0182-0210
3.2
R8C/2B Group
Figure 3.2 is a Memory Map of R8C/2B Group. The R8C/2B 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 2.5-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 (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/2B Group
Undefined instruction
Overflow
BRK instruction
Address match
Single step
Watchdog timer, oscillation stop detection, voltage monitor
(Reserved)
Reset
Internal ROM
Internal RAM
Size
Address 0YYYYh
48 Kbytes
64 Kbytes
96 Kbytes
128 Kbytes
00DFFh
00FFFh
011FFh
FFFFFh
0FFFFh
0YYYYh
00400h
002FFh
00000h
Internal ROM
(program ROM)
Expanded area
Internal RAM
SFR
(Refer to 4. Special
Function Registers
(SFRs))
0FFFFh
0FFDCh
Address 0XXXXh
Address ZZZZZh
Size
2.5 Kbytes
3 Kbytes
7 Kbytes
7.5 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)
ZZZZZh
13FFFh
1BFFFh
23FFFh
04000h
Address 0WWWWh
03DFFh
03FFFh
03000h
Internal RAM
0WWWWh
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