saf-xc836t-2fri Infineon Technologies Corporation, saf-xc836t-2fri Datasheet - Page 23

• Manufacturer Part Number: saf-xc836t-2fri
• Description: 8-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

2.5
The XC835/836 CPU operates in the following five address spaces:
•
•
•
•
•
Figure 6
illustrates the memory address spaces of the 8 Kbyte Flash devices.
Figure 6
Data Sheet
1)
8 Kbytes of Boot ROM, Library ROM and User routines
256 bytes of internal RAM
256 bytes of XRAM
(XRAM can be read/written as program memory or external data memory)
A 128-byte Special Function Register area
4/8 Kbytes of Flash
Physically one 4-Kbyte Flash bank, mapped to both address range .
Flash Bank 0
Flash Bank 0
Code Space
4 KBytes
Boot ROM
256 Bytes
8 KBytes
4 KBytes
XRAM
illustrates the memory address spaces of the 4 Kbyte Flash devices.
1)
Memory Organization
Memory Map of XC835/836 with 4 Kbytes of Flash memory
F100
F000
FFFF
E000
C000
B000
A000
1000
0000
H
H
H
H
H
H
H
H
H
External Data Space
256 Bytes
XRAM
FFFF
F100
F000
0000
18
H
H
H
H
Internal RAM
7F
40
00
Address
Indirect
H
H
H
Internal Data Space
General Device Information
Internal RAM
Special Function
Registers
Address
Direct
In Debug Mode, this 64-byte address area
is replaced by a 64-byte Monitor RAM.
Memory Map User Mode
XC835/836
V1.0, 2010-09
80
FF
H
H
Figure 7