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MPC8271VR 数据表(PDF) 29 Page - Motorola, Inc |
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MPC8271VR 数据表(HTML) 29 Page - Motorola, Inc |
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29 / 56 page ![]() 29 MPC8272 PowerQUICC II™ Family Hardware Specifications MOTOROLA PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE Clock Configuration Modes Clock Configuration Modes 1000_100 66.7 133.3 3 200.0 400.0 4.5 300.0 600.0 8 25.0 50.0 1000_101 66.7 133.3 3 200.0 400.0 6 400.0 800.0 8 25.0 50.0 1000_110 66.7 133.3 3 200.0 400.0 6.5 433.3 866.7 8 25.0 50.0 1001_000 Reserved 1001_001 Reserved 1001_010 71.4 114.3 3.5 250.0 400.0 3.5 250.0 400.0 8 31.3 50.0 1001_011 62.5 114.3 3.5 218.8 400.0 4 250.0 457.1 8 27.3 50.0 1001_100 57.1 114.3 3.5 200.0 400.0 4.5 257.1 514.3 8 25.0 50.0 1001_101 50.0 85.7 3.5 175.0 300.0 5 250.0 428.6 6 29.2 50.0 1001_110 45.5 85.7 3.5 159.1 300.0 5.5 250.0 471.4 6 26.5 50.0 1001_111 42.9 85.7 3.5 150.0 300.0 6 257.1 514.3 6 25.0 50.0 1010_000 75.0 150.0 2 150.0 300.0 2 150.0 300.0 6 25.0 50.0 1010_001 75.0 150.0 2 150.0 300.0 2.5 187.5 375.0 6 25.0 50.0 1010_010 75.0 150.0 2 150.0 300.0 3 225.0 450.0 6 25.0 50.0 1010_011 75.0 150.0 2 150.0 300.0 3.5 262.5 525.0 6 25.0 50.0 1010_100 75.0 150.0 2 150.0 300.0 4 300.0 600.0 6 25.0 50.0 1010_101 100.0 200.0 2 200.0 400.0 2.5 250.0 500.0 8 25.0 50.0 1010_110 100.0 200.0 2 200.0 400.0 3 300.0 600.0 8 25.0 50.0 1010_111 100.0 200.0 2 200.0 400.0 3.5 350.0 700.0 8 25.0 50.0 1011_000 Reserved 1011_001 80.0 160.0 2.5 200.0 400.0 2.5 200.0 400.0 8 25.0 50.0 1011_010 80.0 160.0 2.5 200.0 400.0 3 240.0 480.0 8 25.0 50.0 1011_011 80.0 160.0 2.5 200.0 400.0 3.5 280.0 560.0 8 25.0 50.0 1011_100 80.0 160.0 2.5 200.0 400.0 4 320.0 640.0 8 25.0 50.0 1011_101 80.0 160.0 2.5 200.0 400.0 4.5 360.0 720.0 8 25.0 50.0 1101_000 50.0 100.0 2.5 125.0 250.0 3 150.0 300.0 5 25.0 50.0 Table 16. Clock Configurations for PCI Host Mode (PCI_MODCK=1) 1, 2 (continued) Mode 3 Bus Clock (MHz) CPM Multiplication Factor 4 CPM Clock (MHz) CPU Multiplication Factor 5 CPU Clock (MHz) PCI Division Factor PCI 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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