AN1356 STMicroelectronics, AN1356 Datasheet - Page 7

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

Figure 5. Memory Map: Simple P51XA/PSD4235G2 Design
Note: 1. P51XA firmware gets programmed here by JTAG-ISP or conventional programmer tool.
PSDsoft Express Design Entry
Highlights of design entry are given here. Follow along using PSDsoft Express if you wish.
Open a New Project
(Note 1)
Invoke PSDsoft Express .
Create a new project.
Select your project folder and name the project (in this example, name the project “simpleXA” in the
folder PSDexpress\my_project).
Select an MCU. In this example, we’re using a Philips P51XAG3x.
Select /WRL, /RD, /PSEN, /WRH, Burst Mode for the control signals.
Select the PSD4000 series for the PSD Family.
Select a PSD4235G2 and use the 80-pin TQFP package (U package).
Based on the above selections, the MCU bus will be automatically set to 16-bits multiplexed.
Select the main PSD Flash memory to reside in Data space upon power-up.
06000h - 07FFFh
04000h - 05FFFh
02000h - 03FFFh
00000h - 01FFFh
8FFFFh
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
P51XA
rs0, 8k bytes PSD SRAM
P51XA-G3 Regs/SRAM
lcd_e, ext LCD chip sel
csiop, PSD cnti regs
nothing mapped
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
Data Space
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
AN1356 - APPLICATION NOTE
8FFFFh
80000h
7FFFFh
70000h
6FFFFh
60000h
5FFFFh
50000h
4FFFFh
40000h
3FFFFh
30000h
2FFFFh
20000h
1FFFFh
10000h
0FFFFh
0A000h
08000h - 09FFFh
07000h - 070FFh
06000h - 06001h
00400h - 05FFFh
00000h - 003FFh
64K bytes
64K bytes
64K bytes
64K bytes
64K bytes
64K bytes
64K bytes
64K bytes
64K bytes
AI04072
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