AN1356 STMicroelectronics, AN1356 Datasheet - Page 10

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

AN1356 - APPLICATION NOTE
Your Pin Definition screen should now look like the screen capture below:
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Define a combinatorial CPLD output on Port B pin pb1. Choose Combinatorial from the CPLD Output
section and name it “lcd_rw”. Click Add.
Define a combinatorial CPLD output on Port B pin pb2. Choose Combinatorial from the CPLD Output
section and name it “lcd_a0”. Click Add.
Define an additional JTAG-ISP pin on Port E pin pe4. Choose Dedicated JTAG – TSTAT from the
Other section. Click Add. Notice the name “tstat” is automatically included. Also notice that the signal
“_terr” is automatically added to Port E pin pe5. These two signals work together as a pair to reduce
JTAG-ISP programming time by 10% – 15%. See application note 54 on our web site for details.
Define a pin to accept a battery voltage input for PSD SRAM on Port E pin pe6. Choose SRAM standby
voltage input from the Other section. Click Add. The name “vstby” is automatically included.