參數(shù)資料
型號： SAX-XC878M-13FFI5V
廠商： INFINEON TECHNOLOGIES AG
元件分類： 微控制器/微處理器
英文描述： 8-BIT, FLASH, 24 MHz, RISC MICROCONTROLLER, PQFP64
封裝： PLASTIC, TQFP-64
文件頁數(shù)： 62/141頁
文件大?。?/td> 2385K
代理商： SAX-XC878M-13FFI5V
XC878CLM
Functional Description
Data Sheet
20
V1.1, 2009-08
3.2
Memory Organization
The XC878 CPU operates in the following address spaces:
8 Kbytes of Boot ROM program memory
256 bytes of internal RAM data memory
3 Kbytes of XRAM memory
(XRAM can be read/written as program memory or external data memory)
A 128-byte Special Function Register area
64/52 Kbytes of Flash program memory (Flash devices)
Figure 6 and Figure 7 illustrate the memory address spaces of the XC878 with
64Kbytes and 52Kbytes embedded Flash respectively.
Figure 6
Memory Map of XC878 with 64K Flash Memory in user mode
External
Reserved
Data Space
0' 0000H
XRAM
3 KByte
0' FFFFH
F' F000H
F' FC00H
1' 0000H
1' FFFFH
2' 0000H
2' FFFFH
3' 0000H
3' FFFFH
4' 0000H
4' FFFFH
5' 0000H
5' FFFFH
6' 0000H
6' FFFFH
7' 0000H
7' FFFFH
8' 0000H
8' FFFFH
9' 0000H
9' FFFFH
A' 0000H
A' FFFFH
B' 0000H
B' FFFFH
C' 0000H
C' FFFFH
D' 0000H
D' FFFFH
E' 0000H
E' FFFFH
F' 0000H
F' FFFFH
External
2' FE00H
Reserved
2' C000H
2' F000H
2' FC00H
2' FEC0H
External
2' E000H
Reserved
0' 0000H
2' FE00H
P-Flash
60 KByte
Boot ROM
8 KByte
XRAM
3 KByte
Code Space
Internal Data Space
Memory Map User Mode
D-Flash
4 KByte
0' FFFFH
Reserved
0' F000H
1' 0000H
2' C000H
2' F000H
2' FC00H
1' FFFFH
2' 0000H
2' FFFFH
3' 0000H
3' FFFFH
4' 0000H
4' FFFFH
5' 0000H
5' FFFFH
6' 0000H
6' FFFFH
7' 0000H
7' FFFFH
8' 0000H
8' FFFFH
9' 0000H
9' FFFFH
A' 0000H
A' FFFFH
B' 0000H
B' FFFFH
C' 0000H
C' FFFFH
D' 0000H
D' FFFFH
E' 0000H
E' FFFFH
F' 0000H
F' FFFFH
Bank 1
Bank 3
Bank 4
Bank 5
Bank 6
Bank 7
Bank 8
Bank 9
Bank A
Bank B
Bank C
Bank D
Bank E
Ba
nk
2
Ba
nk
0
2' FEC0H
Ba
n
kF
Reserved
2' E000H
Extension Stack RAM
Memory Extension
Stack Pointer
(MEXSP)
Special Function
Registers
Indirect
Address
Direct
Address
00H
Internal RAM
7FH
Internal RAM
80H
FFH
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