AN1154 STMicroelectronics, AN1154 Datasheet - Page 22

• Manufacturer Part Number: AN1154
• Description: 8031-PSD DESIGN TUTORIAL
• Manufacturer: STMicroelectronics

AN1154 - APPLICATION NOTE
Figure 17. Other Configuration
4. Click on the “JTAG Configuration” tab, as shown in Figure 18, and ensure that none of the boxes are
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checked (because checking the boxes would enable the JTAG port to be operational 100% of the time).
Since, in this tutorial, we are multiplexing the JTAG pins with other signal functions, it is desired that
JTAG functions only be operational when the JEN signal is active (see the Figure 3 schematic).
Enter the value ‘ABCDEF12’ in the “User Code” box below. This value will be programmed into your
PSD device. The User Code can be any value you wish (e.g. to identify end product software revisions,
serial numbers, etc.). Up to eight hexadecimal characters may be entered.
AI03155