參數(shù)資料
型號: SAB-C517A-4RM
廠商: SIEMENS A G
元件分類: 微控制器/微處理器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8-BIT, MROM, 18 MHz, MICROCONTROLLER, PQFP100
文件頁數(shù): 15/67頁
文件大?。?/td> 479K
代理商: SAB-C517A-4RM
Semiconductor Group
15
1997-10-01
C517A
Memory Organization
The C517A CPU manipulates operands in the following five address spaces:
– up to 64 Kbyte of program memory (32K on-chip program memory for C517A-4R)
– up to 64 Kbyte of external data memory
– 256 bytes of internal data memory
– 2K bytes of internal XRAM data memory
– a 128 byte special function register area
Figure 5
illustrates the memory address spaces of the C517A.
Figure 5
C517A Memory Map
ext.
FFFF
8000
0000
7FFF
ext.
(EA = 0)
(EA = 1)
int.
"Code Space"
int.
(XMAP0 = 0)
(XMAP0 = 1)
ext.
FFFF
F800
0000
F7FF
ext.
"Data Space"
"Internal Data Space"
Internal
RAM
7F
00
Internal
RAM
80
FF
Function
Regs.
MCB03321
H
H
H
H
H
H
H
H
H
H
H
H
Special
Indirect
Address
Address
Direct
H
80
FFH
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