saf-xc866-4rri3v Infineon Technologies Corporation, saf-xc866-4rri3v Datasheet - Page 19

• Manufacturer Part Number: saf-xc866-4rri3v
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

3.2
The XC866 CPU operates in the following five address spaces:
• 8 Kbytes of Boot ROM program memory
• 256 bytes of internal RAM data memory
• 512 bytes of XRAM memory
• a 128-byte Special Function Register area
• 4/8/16 Kbytes of Flash program memory (Flash devices); or
Figure 6
Figure 6
Data Sheet
1) For XC866-1FR device, physically one 4KByte D-Flash bank is mapped to both address range 0000H - 0FFFH and A000H - AFFFH,
2) For XC866-2FR device, the shaded banks are not available.
(XRAM can be read/written as program memory or external data memory)
8/16 Kbytes of ROM program memory, with additional 4 Kbytes of Flash
(ROM devices)
and the shaded banks are not available.
Program Space
P-Flash Bank 2
P-Flash Bank 1
P-Flash Bank 0
D-Flash Bank
Boot ROM
4 Kbytes
4 Kbytes
4 Kbytes
4 Kbytes
512 bytes
8 Kbytes
XRAM
illustrates the memory address spaces of the XC866-4FR device.
Memory Organization
2)
2)
1)
1)
Memory Map of XC866 Flash Devices
F200
F000
FFFF
E000
C000
B000
A000
3000
2000
1000
0000
H
H
H
H
H
H
H
H
H
H
H
External Data Space
512 bytes
XRAM
15
F200
F000
FFFF
0000
H
H
H
H
Internal RAM
Address
Indirect
7F
00
H
H
Functional Description
Internal Data Space
Internal RAM
Special Function
Registers
Address
Direct
V1.2, 2007-10
XC866
FF
80
H
H