C515 Datasheet, PDF (15/55 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

C515
Memory Organization
The C515 CPU manipulates data and operands in the following four address spaces:
– up to 64 Kbyte of 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 5 illustrates the memory address spaces of the C515.
FFFF _H
FFFF _H
External
External
Internal
(EA = 1)
2000 _H
External
(EA = 0)
1FFF _H
0000 _H
"Code Space"
0000 _H
"Data Space"
Indirect
Address
FF _H
Internal
RAM
80 _H
Direct
Address
Special ^{FF H}
Function
Register
80 _H
7F _H
Internal
RAM
00 _H
"Internal Data Space"
MCD03202
Figure 5
C515 Memory Map
Semiconductor Group
15
1997-08-01