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MPC8248CZQB 数据表(PDF) 37 Page - Motorola, Inc |
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MPC8248CZQB 数据表(HTML) 37 Page - Motorola, Inc |
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37 / 56 page ![]() 37 MPC8272 PowerQUICC II™ Family Hardware Specifications MOTOROLA PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE Clock Configuration Modes Clock Configuration Modes 1011_000 Reserved 1011_001 25.0 50.0 8 200.0 400.0 2.5 200.0 400.0 2.5 80.0 160.0 1011_010 25.0 50.0 8 200.0 400.0 3 240.0 480.0 2.5 80.0 160.0 1011_011 25.0 50.0 8 200.0 400.0 3.5 280.0 560.0 2.5 80.0 160.0 1011_100 25.0 50.0 8 200.0 400.0 4 320.0 640.0 2.5 80.0 160.0 1011_101 25.0 50.0 8 200.0 400.0 2.5 250.0 500.0 2 100.0 200.0 1011_110 25.0 50.0 8 200.0 400.0 3 300.0 600.0 2 100.0 200.0 1011_111 25.0 50.0 8 200.0 400.0 3.5 350.0 700.0 2 100.0 200.0 1100_101 31.3 50.0 6 187.5 300.0 4 250.0 400.0 3 62.5 100.0 1100_110 27.8 50.0 6 166.7 300.0 4.5 250.0 450.0 3 55.6 100.0 1100_111 25.0 50.0 6 150.0 300.0 5 250.0 500.0 3 50.0 100.0 1101_000 25.0 50.0 6 150.0 300.0 5.5 275.0 550.0 3 50.0 100.0 1101_001 29.8 50.0 6 178.6 300.0 3.5 250.0 420.0 2.5 71.4 120.0 1101_010 26.0 50.0 6 156.3 300.0 4 250.0 480.0 2.5 62.5 120.0 1101_011 25.0 50.0 6 150.0 300.0 4.5 270.0 540.0 2.5 60.0 120.0 1101_100 25.0 50.0 6 150.0 300.0 5 300.0 600.0 2.5 60.0 120.0 1110_000 25.0 50.0 5 125.0 250.0 2.5 156.3 312.5 2 62.5 125.0 1110_001 25.0 50.0 5 125.0 250.0 3 187.5 375.0 2 62.5 125.0 1110_010 28.6 50.0 5 142.9 250.0 3.5 250.0 437.5 2 71.4 125.0 1110_011 25.0 50.0 5 125.0 250.0 4 250.0 500.0 2 62.5 125.0 1110_100 37.5 50.0 5 187.5 250.0 4 250.0 333.3 3 62.5 83.3 1110_101 33.3 50.0 5 166.7 250.0 4.5 250.0 375.0 3 55.6 83.3 1110_110 30.0 50.0 5 150.0 250.0 5 250.0 416.7 3 50.0 83.3 1110_111 27.3 50.0 5 136.4 250.0 5.5 250.0 458.3 3 45.5 83.3 Table 18. Clock Configurations for PCI Agent Mode (PCI_MODCK=1) 1, 2 (continued) Mode 3 PCI Clock (MHz) CPM Multiplication Factor 4 CPM Clock (MHz) CPU Multiplication Factor 5 CPU Clock (MHz) Bus Division Factor Bus Clock (MHz) MODCK_H- MODCK[1-3] Low High Low High Low High Low High Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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