AN1177 STMicroelectronics, AN1177 Datasheet - Page 9

• Manufacturer Part Number: AN1177
• Description: P51XA-PSD8XX DESIGN GUIDE
• Manufacturer: STMicroelectronics

AN1177 - APPLICATION NOTE
Page Register Definition. In this example, the P51XA is assumed to be outputting 20 address bits, pro-
viding a one megabyte address space. As such, no page bits are required to extend the address space,
so there is nothing to do on this screen at this time except to move on. However, later, you will see how
the Page Register can be used for general logic inputs to the PLD. Click Next >> when finished.
Chip Select Equations. Use this screen to enter chip-select equations to match your memory map. The
entry for the PSD SRAM (rs0) is shown below.
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