AN1356 STMicroelectronics, AN1356 Datasheet - Page 26

• Manufacturer Part Number: AN1356
• Description: PSDSOFT EXPRESS AND PSD4235G2 DESIGN GUIDE
• Manufacturer: STMicroelectronics

AN1356 - APPLICATION NOTE
Figure 28. Memory Map just after P51XA writes 06h to PSD VM register
Note: 1. IAP complete, main PSD Flash memory moves to Program space
Your system design may require that you operate application code completely from main PSD Flash
memory after IAP is complete. This means swapping the secondary PSD Flash memory (containing IAP
loader code) out of Program space, and replacing it with main PSD Flash memory (containing application
code). This is explained in the third design example.
PSDsoft Express Design Entry
We are finished with IAP issues, now let’s get started on the advanced CPLD logic design. Invoke PSDsoft
Express , open the project “simpleXA” from the first design example (if not already open). Pull down
‘Project’ from the menu at the top of the screen, and select ‘Save As’. For this second design example,
save the first project under the new name “logicXA”.
For this second design, “logicXA” we want to use the Extended Design Assistant environment so go to the
‘Project’ menu pull down at the top of the screen and select ‘Preference’. Then enable ABEL editing by
clicking the box as shown, then OK.
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64K bytes
64K bytes
64K bytes
64K bytes
64K bytes
64K bytes
64K bytes
64K bytes
64K bytes
06000h - 07FFFh
04000h - 05FFFh
02000h - 03FFFh
00000h - 01FFFh
8FFFFh
7FFFFh
6FFFFh
5FFFFh
4FFFFh
3FFFFh
2FFFFh
1FFFFh
0FFFFh
80000h
70000h
60000h
50000h
40000h
30000h
20000h
10000h
08000h
csboot3, 8Kb PSD 2nd Flash
csboot2, 8Kb PSD 2nd Flash
csboot1, 8Kb PSD 2nd Flash
csboot0, 8Kb PSD 2nd Flash
Program Space
nothing mapped
64K bytes PSD
64K bytes PSD
64K bytes PSD
64K bytes PSD
64K bytes PSD
64K bytes PSD
64K bytes PSD
64K bytes PSD
Main Flash
Main Flash
Main Flash
Main Flash
Main Flash
Main Flash
Main Flash
Main Flash
P51XA
fs0
fs7
fs6
fs5
fs4
fs3
fs2
fs1
rs0, 8k bytes PSD SRAM
P51XA-G3 Regs/SRAM
lcd_e, ext LCD chip sel
csiop, PSD cnti regs
nothing mapped
nothing mapped
Data Space
P51XA
8FFFFh
0A000h
08000h - 09FFFh
07000h - 070FFh
06000h - 06001h
00400h - 05FFFh
00000h - 003FFh
AI04082