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DSP56321 Datasheet(PDF) 43 Page - Freescale Semiconductor, Inc |
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DSP56321 Datasheet(HTML) 43 Page - Freescale Semiconductor, Inc |
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43 / 84 page  AC Electrical Characteristics DSP56321 Technical Data, Rev. 11 Freescale Semiconductor 2-23 2.4.8 ESSI0/ESSI1 Timing Table 2-12. ESSI Timings No. Characteristics4, 6 Symbol Expression 200 MHz 220 MHz 240 MHz 275 MHz Cond- ition5 Unit Min Max Min Max Min Max Min Max 430 Clock cycle1 TECCX TECCI 6 × TC 8 × TC 30.0 40.0 — — 27.3 36.6 — — 25.0 33.3 — — 21.5 25.0 — — x ck i ck ns ns 431 Clock high period • For internal clock • For external clock TECCX/2 – 3.7 TECCI/2 – 10.0 11.3 10.0 — — 9.9 8.2 — — 8.8 6.7 — — 7.21 2.5 — — ns ns 432 Clock low period • For internal clock • For external clock TECCX/2 – 3.7 TECCI/2 −10.0 11.3 10.0 — — 9.9 8.2 — — 8.8 6.7 — — 7.21 2.5 — — ns ns 433 RXC rising edge to FSR out (bit-length) high — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 x ck i ck a ns 434 RXC rising edge to FSR out (bit-length) low — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 x ck i ck a ns 435 RXC rising edge to FSR out (word- length-relative) high 2 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 x ck i ck a ns 436 RXC rising edge to FSR out (word- length-relative) low2 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 x ck i ck a ns 437 RXC rising edge to FSR out (word- length) high — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 x ck i ck a ns 438 RXC rising edge to FSR out (word- length) low — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 x ck i ck a ns 439 Data in setup time before RXC (SCK in Synchronous mode) falling edge 5.0 10.0 — — 5.0 10.0 — — 5.0 10.0 — — 5.0 10.0 — — x ck i ck ns 440 Data in hold time after RXC falling edge 3.8 5.0 — — 3.8 5.0 — — 3.8 5.0 — — 3.8 5.0 — — x ck i ck ns 441 FSR input (bl, wr) high before RXC falling edge 2 5.0 10.0 — — 5.0 10.0 — — 5.0 10.0 — — 5.0 10.0 — — x ck i ck a ns 442 FSR input (wl) high before RXC falling edge 5.0 10.0 — — 5.0 10.0 — — 5.0 10.0 — — 5.0 10.0 — — x ck i ck a ns 443 FSR input hold time after RXC falling edge 3.8 5.0 — — 3.8 5.0 — — 3.8 5.0 — — 3.8 5.0 — — x ck i ck a ns 444 Flags input setup before RXC falling edge 5.0 10.0 — — 5.0 10.0 — — 5.0 10.0 — — 5.0 10.0 — — x ck i ck s ns 445 Flags input hold time after RXC falling edge 3.8 5.0 — — 3.8 5.0 — — 3.8 5.0 — — 3.8 5.0 — — x ck i ck s ns 446 TXC rising edge to FST out (bit-length) high — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 x ck i ck ns 447 TXC rising edge to FST out (bit-length) low — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 x ck i ck ns 448 TXC rising edge to FST out (word- length-relative) high2 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 x ck i ck ns 449 TXC rising edge to FST out (word- length-relative) low2 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 x ck i ck ns 450 TXC rising edge to FST out (word- length) high — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 — — 12.5 8.3 x ck i ck ns |
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