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SLG46400 Datasheet(PDF) 56 Page - Dialog Semiconductor |
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SLG46400 Datasheet(HTML) 56 Page - Dialog Semiconductor |
56 / 95 page 000-0046400-109 Page 50 of 89 SLG46400 14.0 Programmable Delay (PDLY) The SLG46400 has a programmable time delay logic cell available that can generate a maximum delay of 200ns. The program- mable time delay cell has four delay cells with a typical value of 20ns per cell (based on a VDD of 3.3V). The delay cells are tied in series where the output of each delay cell goes to the next delay cell and to a 4-input mux that is controlled by reg<537:536>. 14.1 Programmable Delay Functional Diagram 14.2 VDD vs. Typical Time Delay 14.3 Programmable Delay Register Settings Figure 28. Programmable Delay Functional Diagram Table 21. VDD vs. Typical Time Delay per 1 Cell. VDD (V) Typical Time Delay (ns) 5.0V 10ns 3.3V 20ns 1.8V 50ns Table 22. Programmable Delay Register Settings Signal Name Signal Function Register Bit Address Register Definition PDLY_sel PDLY value section <537:536> 00: 1 delay cell active 01: 2 delay cells active 10: 3 delay cells active 11: 4 delay cells active Delay 20ns Delay 20ns Delay 20ns Delay 20ns From Connection Matrix output <6> 01 00 11 10 reg<537:536> To Connection Matrix input <47> OUT IN |
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