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C5C5EDELTA-RM/D Datasheet(PDF) 46 Page - NXP Semiconductors |
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C5C5EDELTA-RM/D Datasheet(HTML) 46 Page - NXP Semiconductors |
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46 / 114 page ![]() 46 CHAPTER 2: SIGNAL DESCRIPTIONS C 8 SPLD is deasserted for 22 SPCLK cycles, shifting the second PROM_DATA into the network processor internal shift register. 9 SPLD is asserted for one SPCLK cycle, loading the second PROM_DATA into the network processor PROM_RETURN_DATA register. Figure 6 PROM Interface Timing Outline SPCLK SPLD 12 45 678 9 11 10 12 13 14 15 16 17 18 19 20 21 22 23 12 3 4 567 89 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 20 19 21 22 23 1 2 3 4 5 6 7 x A 20 A 19 A 18 SPDTO A 17 A 16 A 15 A 14 A 13 A 12 A 11 A 10 A 9 A 8 A 7 A 6 A 5 A 4 A 3 A 2 A 1 A 0 CE The PROM_ADDR is loaded into the C-5's internal shift register. The PROM_ADDR is shifted into the external shift register. (SPCLK Rising Edge used for shifting) The PROM_ADDR is loaded into the external presentation register. The PROM_DATA is presenting. The PROM_DATA is loaded into the external shift register. The PROM_DATA is shifted into the C-5's Internal shift register. The PROM_DATA is loaded into the C-5's internal PROM_RETURN_DATA register. SPDTI x D 15 D 14 D 13 D 12 D 11 D 10 D 9 D 8 D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 xx xxxx XP PROM Interface outline XP PROM Interface detail SPLD SPDTO SPDTI Q< Q< A1 A2 Q< Q< ` A3 A4 A5 D1 D2 D3 D1 D2 A1 A2 A3 A4 1 2 3 4 5 6 7 8 9 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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