SPRUJ17I March 2022 – August 2025 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
This section lists all formulas to calculate synchronous NOR timing parameters. This is the case when GPMC_CONFIG1_i[11-10] DEVICETYPE = 0x0 and when READTYPE or WRITETYPE are set to synchronous mode. Table 13-216 describes the synchronous NOR formulas.
| Configuration Parameter | Unit | Description |
|---|---|---|
| A | ns | Pulse duration – nCS low |
| B | ns | Delay time – address bus valid to CLK first edge |
| Delay time – nBE0 / nBE1 valid to CLK first edge | ||
| C | ns | Pulse duration – nBE0 / nBE1 low |
| D | ns | Delay time – CLK rising edge to nBE0 / nBE1 invalid |
| Delay time – CLK rising edge to nADV/ALE invalid | ||
| E | ns | Delay time – CLK rising edge to nCS invalid |
| Delay time – CLK rising edge to nOE/nRE invalid | ||
| F | ns | Delay time – CLK rising edge to nCS transition |
| G | ns | Delay time – CLK rising edge to nADV/ALE transition |
| H | ns | Delay time – CLK rising edge to nOE/nRE transition |
| I | ns | Delay time – CLK rising edge to nWE transition |
| J | ns | Delay time – CLK rising edge to A[16-1/]D[15-0] data bus transition |
| Delay time – CLK rising edge to nBE0 / nBE1 transition | ||
| K | ns | Pulse duration – nADV/ALE low |
| L | ns | Delay time – WAIT invalid to first data latching CLK edge |
The configuration parameters are calculated through the following formulas. For more information, see the device-specific Datasheet.
Figure 13-165 shows a simplified example of a synchronous NOR single read where formulas are associated with signal waves.
Figure 13-165 Synchronous NOR Single Read Simplified Example