C501G-1E SIEMENS [Siemens Semiconductor Group], C501G-1E Datasheet - Page 22

• Manufacturer Part Number: C501G-1E
• Description: 8-Bit Single-Chip Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

3
The C501 CPU manipulates operands in the following four address spaces:
Figure 3-1 illustrates the memory address spaces of the C501.
Figure 3-1
C501 Memory Map
Semiconductor Group
– 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
Memory Organization
(EA = 1)
Internal
"Code Space"
External
External
(EA = 0)
FFFF H
2000 H
1FFF H
0000
H
External
"Data Space"
3-1
FFFF
0000
H
H
Address
Internal
Indirect
RAM
"Internal Data Space"
FF H
80
Internal
RAM
Memory Organization
H
7F
00 H
Address
Function
Register
Special
Direct
H
MCD03224
FF
80 H
H
C501