
Spectrum Digital, Inc
2-26
TMS320C54XX Evaluation Module Technical Reference
In our example one section is loaded. However, if multiple sections are used they are tacked
onto the first section in the same format as the first section(0x8005 to 0xc008). Of course, the
size of each section is independent, as long as the total size of all the sections is less than
32K words. For more information on boot loading options please refer to the C548/C549 boot
loading document available from Texas Instruments
Table 15: Sample Boot Load Format Stored In Flash ROM
Data Space
Address
Data Space
Data
Function
0xFFFF 0x8000 Source Address
... 0x0000 Zero Fill
0xC009 0x0000 ...
0xC008 0xF495(NOP) Last Op Code, 1st Section
0xF495(NOP)
0x8009 1st Op Code, 1st Section
0x8007 0x4000 Destination Address
0x8006 0x0000 Destination of 1st XPC
0x8005 0x4000 Size of 1st Section
0x8004 0x7F80 Entry Point
0x8003 0x0000 Entry XPC
0x8002 0x8802 BSCR Value
0x8001 0x7FFF SWWR Value
0x8000 0x10AA Recognition byte 16 bit mode
0x7FFF
Interrupt Vectors
1st Op code
0x7F80
0x4000
0xF073
NOP
NOP
Figure 2-8, Boot Load Example Internal Memory
0x4000
0x7F7F
0x7F7E
B 0x4000
Last Op Code
1st Section
Comments
Program Address
Data
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