English
Language : 

C515A Datasheet, PDF (14/58 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller
◁
C515A
Memory Organization
The C515A CPU manipulates operands in the following five address spaces:
– up to 64 Kbyte of program memory (32K on-chip program memory for C515A-4R)
– up to 64 Kbyte of external data memory
– 256 bytes of internal data memory
– 1K bytes of internal XRAM data memory
– a 128 byte special function register area
Figure 5 illustrates the memory address spaces of the C515A.
FFFF H
Ext.
8000 H
7FFFH
Int.
EA = 1)
Ext.
EA = 1)
"Code Space"
0000 H
Alternatively
Ext.
Data
Memory
FFFF H
Internal
XRAM
(1 KByte)
FC00 H
FBFF H
Ext.
Data
Memory
Indirect
Addr.
Internal
RAM
Direct
Addr.
FF H
Special
Function
Regs.
80 H
7F H
Internal
RAM
0000 H
00 H
"Data Space"
"Internal Data Space"
MCB03243
Figure 5
C515A Memory Map
Semiconductor Group
14
1997-10-01
 ▷