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MPC866PCZP100A 数据表(PDF) 21 Page - Freescale Semiconductor, Inc |
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MPC866PCZP100A 数据表(HTML) 21 Page - Freescale Semiconductor, Inc |
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21 / 96 page ![]() MPC866/MPC859 Hardware Specifications, Rev. 2 Freescale Semiconductor 21 Bus Signal Timing B30 CS, WE(0:3) negated to A(0:31), BADDR(28:30) invalid GPCM write access 7 (MIN = 0.25 x B1 – 2.00) 5.60 — 4.30 — 3.00 — 1.80 — ns B30a WE(0:3) negated to A(0:31), BADDR(28:30) invalid GPCM, write access, TRLX = 0, CSNT = 1, CS negated to A(0:31) invalid GPCM write access TRLX = 0, CSNT =1 ACS = 10, or ACS == 11, EBDF = 0 (MIN = 0.50 x B1 – 2.00) 13.20 — 10.50 — 8.00 — 5.60 — ns B30b WE(0:3) negated to A(0:31) invalid GPCM BADDR(28:30) invalid GPCM write access, TRLX = 1, CSNT = 1. CS negated to A(0:31) invalid GPCM write access TRLX = 1, CSNT = 1, ACS = 10, or ACS == 11 EBDF = 0 (MIN = 1.50 x B1 – 2.00) 43.50 — 35.50 — 28.00 — 20.70 — ns B30c WE(0:3) negated to A(0:31), BADDR(28:30) invalid GPCM write access, TRLX = 0, CSNT = 1. CS negated to A(0:31) invalid GPCM write access, TRLX = 0, CSNT = 1 ACS = 10, ACS == 11, EBDF = 1 (MIN = 0.375 x B1 – 3.00) 8.40 — 6.40 — 4.50 — 2.70 — ns B30d WE(0:3) negated to A(0:31), BADDR(28:30) invalid GPCM write access TRLX = 1, CSNT =1, CS negated to A(0:31) invalid GPCM write access TRLX = 1, CSNT = 1, ACS = 10 or 11, EBDF = 1 38.67 — 31.38 — 24.50 — 17.83 — ns B31 CLKOUT falling edge to CS valid, as requested by control bit CST4 in the corresponding word in the UPM (MAX = 0.00 X B1 + 6.00) 1.50 6.00 1.50 6.00 1.50 6.00 1.50 6.00 ns B31a CLKOUT falling edge to CS valid, as requested by control bit CST1 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 B31b CLKOUT rising edge to CS valid, as requested by control bit CST2 in the corresponding word in the UPM (MAX = 0.00 x B1 + 8.00) 1.50 8.00 1.50 8.00 1.50 8.00 1.50 8.00 ns B31c CLKOUT rising edge to CS valid, as requested by control bit CST3 in the corresponding word in the UPM (MAX = 0.25 x B1 + 6.30) 7.60 13.80 6.30 12.50 5.00 11.30 3.80 10.00 ns Table 9. Bus Operation Timings (continued) Num Characteristic 33 MHz 40 MHz 50 MHz 66 MHz Unit Min Max Min Max Min Max Min Max |
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