Kane Industries C6713CPU User Manual download pdf (Page 22)

ARDWARE

EFERENCE

UIDE

MICRO

LINE



C6713CPU

Date : 28 November 2005

Doc. no. : C6713CPU_HRG

Iss./Rev : 1.1

Page : 22

3.7 Endianness

When data is transferred between the C6713CPU board and external hardware over the micro-

line

connector it is important to know how data is stored in memory.

The C6713CPU is configured for little endian operation. This means, less significant bytes are

stored first (at lower addresses).

8 bit write to memory

Data to be stored C-code result in memory

*(char *)0x8000000 = 0x12

8000 0000h

16 bit write to memory

Data to be stored C-code result in memory

12 34

*(short *)0x8000000 = 0x1234

8000 0000h

8000 0001h

32 bit write to memory

Data to be stored C-code result in memory

12 34 56 78

*(int *)0x8000000 = 0x12345678

8000 0000h

8000 0001h

8000 0002h

8000 0003h

Figure 5: Data representation in memory in little endian configuration

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 53 54

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Kane Industries C6713CPU User Manual Page 22