參數(shù)資料
型號： M308A0SGP
元件分類： 微控制器/微處理器
英文描述： MROM, 32 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁數(shù)： 14/68頁
文件大?。?/td> 1193K
代理商： M308A0SGP
M32C/8A Group
3. Memory
REJ03B0213-0111 Rev.1.11 Mar 31, 2009
Page 21 of 66
3.
Memory
Figure 3.1 shows a memory map of the M32C/8A Group.
The M32C/8A Group has 16-Mbyte address space from addresses 000000h to FFFFFFh.
The fixed interrupt vectors are allocated in addresses FFFFDCh to FFFFFFh. They store the starting address of each
interrupt routine.
The internal RAM is allocated higher addresses, beginning with address 000400h. For example, a 12-Kbyte internal
RAM area is allocated in addresses 000400h to 0033FFh. The internal RAM is used not only for storing data but for
the stacks when subroutines are called or when interrupt requests are acknowledged.
SFRs are allocated in addresses 000000h to 0003FFh. The peripheral function control registers such as for I/O ports,
A/D converters, serial interfaces, timers are allocated here. All blank spaces within SFRs are reserved and cannot be
accessed by users.
The special page vectors are allocated addresses FFFE00h to FFFFDBh. They are used for the JMPS instruction and
JSRS instruction. Refer to the Renesas publication M32C/80 Series Software Manual for details.
Figure 3.1
Memory Map
NOTE:
1. The watchdog timer interrupt, oscillation stop detection interrupt, and Vdet4 detection interrupt use the same vector.
FFFFFFh
Special page
vector table
FFFFDCh
FFFE00h
Reset
Address match
BRK instruction
Overflow
Undefined instruction
NMI
Watchdog timer(1)
000000h
SFR
Internal RAM
Reserved
External Space
000400h
XXXXXXh
010000h
FFFFFFh
Internal RAM
XXXXXXh
0033FFh
Capacity
12 Kbytes
0063FFh
24 Kbytes
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M308A0SGP MROM, 32 MHz, MICROCONTROLLER, PQFP100
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相關代理商/技術參數(shù)
參數(shù)描述
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