参数资料
型号: C540U
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: 14/65页
文件大小: 427K
代理商: C540U
Semiconductor Group
14
1997-10-01
C540U
C541U
Memory Organization
The C540U/C541U CPU manipulates operands in the following four address spaces:
– 8 or 4 KByte on-chip OTP program memory
– Totally up to 64 Kbyte internal/external program memory
– up to 64 Kbyte of external data memory
– 256 bytes of internal data memory
– a 128 byte special function register area
Figure 6
illustrates the memory address spaces of the C540U/C541U.
Figure 6
C540U/C541U Memory Map Memory Map
External
Internal
(EA = 1)
(EA = 0)
External
FFFF
H
2000 1)
1FFF 1)
0000
H
External
FFFF
H
0000
H
00
H
H
7F
Register
Function
Special
RAM
Internal
RAM
Internal
H
80
H
FF
Addr.
Indirect
Addr.
Direct
"Code Space"
"External Data Space"
"Internal Data Space"
MCD03375
80
H
FF
H
1) For the C504U the int. / ext. program memory boundary is at 0FFF / 1000 .
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