SAF-XC864L-1FRI3V3 查看數據表（PDF） - Infineon Technologies

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SAF-XC864L-1FRI3V3

8-Bit Single-Chip Microcontroller

Infineon Technologies 

XC864

Functional Description

3.2

Memory Organization

The XC864 consists of four types of memory:

• 8 Kbytes of Boot ROM program memory

• 256 bytes of internal RAM data memory

• 512 bytes of XRAM memory

(XRAM can be read/written as program memory or external data memory)

• 128 Special Function Register

• 4 Kbytes of Flash for code (and data)

Figure 6 illustrates the memory map of the address spaces of the XC864-1FR device.

XRAM

512 bytes

Boot ROM

8 Kbytes

FFFF H

F200H

F000H

E000H

C000H

XRAM

512 bytes

FFFF H

F200H

F000H

Flash

4 Kbytes 1)

B000H

A000H

3000H

2000H

Flash (overlayed )

4 Kbytes 1)

1000H

0000H

0000H

Indirect

Address

Internal RAM

Direct

Address

FFH

Special Function

Registers

80H

7FH

Internal RAM

00H

Program Space

External Data Space

Internal Data Space

1) For XC864 device, physically one 4KByte Flash bank is mapped to both address range 0000 H - 0FFFH and A000 H - AFFFH.

Figure 6 Memory Map of XC864

Data Sheet

12

V 1.1, 2009-03

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