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MPC862 Datasheet(PDF) 22 Page - Motorola, Inc |
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MPC862 Datasheet(HTML) 22 Page - Motorola, Inc |
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22 / 88 page  22 MPC862/857T/857DSL Hardware Specifications MOTOROLA Bus Signal Timing Bus Signal Timing B33a CLKOUT rising edge to GPL Valid - as requested by control bit GxT3 in the corresponding word in the UPM (MAX = 0.25 x B1 + 6.80) 7.60 14.30 6.30 13.00 5.00 11.80 3.80 10.50 ns B34 A(0:31), BADDR(28:30), and D(0:31) to CS valid - as requested by control bit CST4 in the corresponding word in the UPM (MIN = 0.25 x B1 - 2.00) 5.60 — 4.30 — 3.00 — 1.80 — ns B34a A(0:31), BADDR(28:30), and D(0:31) to CS valid - as requested by control bit CST1 in the corresponding word in the UPM (MIN = 0.50 x B1 - 2.00) 13.20 — 10.50 — 8.00 — 5.60 — ns B34b A(0:31), BADDR(28:30), and D(0:31) to CS valid - as requested by CST2 in the corresponding word in UPM (MIN = 0.75 x B1 - 2.00) 20.70 — 16.70 — 13.00 — 9.40 — ns B35 A(0:31), BADDR(28:30) to CS valid - as requested by control bit BST4 in the corresponding word in the UPM (MIN = 0.25 x B1 - 2.00) 5.60 — 4.30 — 3.00 — 1.80 — ns B35a A(0:31), BADDR(28:30), and D(0:31) to BS valid - As Requested by BST1 in the corresponding word in the UPM (MIN = 0.50 x B1 - 2.00) 13.20 — 10.50 — 8.00 — 5.60 — ns B35b A(0:31), BADDR(28:30), and D(0:31) to BS valid - as requested by control bit BST2 in the corresponding word in the UPM (MIN = 0.75 x B1 - 2.00) 20.70 — 16.70 — 13.00 — 9.40 — ns B36 A(0:31), BADDR(28:30), and D(0:31) to GPL valid as requested by control bit GxT4 in the corresponding word in the UPM (MIN = 0.25 x B1 - 2.00) 5.60 — 4.30 — 3.00 — 1.80 — ns B37 UPWAIT valid to CLKOUT falling edge 12 (MIN = 0.00 x B1 + 6.00) 6.00 — 6.00 — 6.00 — 6.00 — ns B38 CLKOUT falling edge to UPWAIT valid 12 (MIN = 0.00 x B1 + 1.00) 1.00 — 1.00 — 1.00 — 1.00 — ns B39 AS valid to CLKOUT rising edge 13 (MIN = 0.00 x B1 + 7.00) 7.00 — 7.00 — 7.00 — 7.00 — ns B40 A(0:31), TSIZ(0:1), RD/WR, BURST, valid to CLKOUT rising edge (MIN = 0.00 x B1 + 7.00) 7.00 — 7.00 — 7.00 — 7.00 — ns B41 TS valid to CLKOUT rising edge (setup time) (MIN = 0.00 x B1 + 7.00) 7.00 — 7.00 — 7.00 — 7.00 — ns Table 7. Bus Operation Timings (continued) Num Characteristic 33 MHz 40 MHz 50 MHz 66 MHz Unit Min Max Min Max Min Max Min Max Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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