参数资料
型号: C505
厂商: SIEMENS AG
元件分类: 8位微控制器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8位CMOS微控制器
文件页数: 17/88页
文件大小: 1224K
代理商: C505
C505/C505C/C505A/C505CA
Data Sheet
13
12.00
Memory Organization
The C505 CPU manipulates operands in the following four address spaces:
On-chip program memory :16K byte ROM (C505(C)(A)-2R) or
32K byte ROM (C505A-4R/C505CA-4R) or
32K byte OTP (C505A-4E/C505CA-4E)
Totally up to 64K byte internal/external program memory
up to 64 Kbyte of external data memory
256 bytes of internal data memory
Internal XRAM data memory :256 byte (C505/C505C)
1K byte (C505A/C505CA)
a 128 byte special function register area
Figure 5
illustrates the memory address spaces of the C505 versions.
Figure 5
C505 Memory Map Memory Map
Ext.
Int.
(EA = 1)
Ext.
Data
Memory
Int. CAN
Contr.
(256 Byte)
(EA = 0)
Ext.
FFFF
H
8000
H
3FFF /
7FFF
H
0000
H
Data
Memory
Ext.
F700
H
F6FF
H
0000
H
00
H
H
7F
Regs.
Function
Special
RAM
Internal
RAM
Internal
H
80
H
FF
Addr.
Indirect
Addr.
Direct
Alternatively
"Code Space"
"Data Space"
"Internal Data Space"
MCB03632
XRAM
Internal
FFFF
H
80
H
FF
H
See table below
for detailed
Data Memory
partitioning
4000 /
Device
C505
C505C
C505A
C505CA
CAN Area
F700 F7FF
H
Unused Area
F700 FEFF
F800 FEFF
F700 FBFF
H
H
FF00 FFFF
FF00 FFFF
FC00 FFFF
FC00 FFFF
XRAM Area
H
"Data Space" F700 to FFFF :
F700 F7FF
H
F800 FBFF
H
H
H
H
H
Unused
Area
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