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MPC866P 数据表(PDF) 20 Page - Freescale Semiconductor, Inc |
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MPC866P 数据表(HTML) 20 Page - Freescale Semiconductor, Inc |
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20 / 92 page  20 MPC866/859 Hardware Specifications MOTOROLA Bus Signal Timing Bus Signal Timing B29c CS negated to D(0:31), DP(0:3) High-Z 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 B29d WE(0:3) negated to D(0:31), DP(0:3) High-Z GPCM write access, TRLX = 1, CSNT = 1, EBDF = 0 (MIN = 1.50 x B1 – 2.00) 43.50 — 35.50 — 28.00 — 20.70 — ns B29e CS negated to D(0:31), DP(0:3) High-Z 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 B29f WE(0:3) negated to D(0:31), DP(0:3) High Z GPCM write access, TRLX = 0, CSNT = 1, EBDF = 1 (MIN = 0.375 x B1 – 6.30) 5.00 — 3.00 — 1.10 — 0.00 — ns B29g CS negated to D(0:31), DP(0:3) High-Z GPCM write access, TRLX = 0, CSNT = 1 ACS = 10 or ACS = 11, EBDF = 1 (MIN = 0.375 x B1 – 6.30) 5.00 — 3.00 — 1.10 — 0.00 — ns B29h WE(0:3) negated to D(0:31), DP(0:3) High Z GPCM write access, TRLX = 1, CSNT = 1, EBDF = 1 (MIN = 0.375 x B1 – 3.30) 38.40 — 31.10 — 24.20 — 17.50 — ns B29i CS negated to D(0:31), DP(0:3) High-Z GPCM write access, TRLX = 1, CSNT = 1, ACS = 10 or ACS = 11, EBDF = 1 (MIN = 0.375 x B1 – 3.30) 38.40 — 31.10 — 24.20 — 17.50 — ns 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 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 Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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