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MPC8271VR 数据表(PDF) 33 Page - Freescale Semiconductor, Inc |
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MPC8271VR 数据表(HTML) 33 Page - Freescale Semiconductor, Inc |
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33 / 61 page ![]() MPC8272 PowerQUICC II Family Hardware Specifications, Rev. 3 Freescale Semiconductor 33 Clock Configuration Modes 0100_001 25.0 50.0 6 150.0 300.0 6 150.0 300.0 6 25.0 50.0 0100_010 25.0 50.0 6 150.0 300.0 7 175.0 350.0 6 25.0 50.0 0100_011 25.0 50.0 6 150.0 300.0 8 200.0 400.0 6 25.0 50.0 0101_000 60.0 100.0 2 120.0 200.0 2.5 150.0 250.0 4 30.0 50.0 0101_001 50.0 100.0 2 100.0 200.0 3 150.0 300.0 4 25.0 50.0 0101_010 50.0 100.0 2 100.0 200.0 3.5 175.0 350.0 4 25.0 50.0 0101_011 50.0 100.0 2 100.0 200.0 4 200.0 400.0 4 25.0 50.0 0101_100 50.0 100.0 2 100.0 200.0 4.5 225.0 450.0 4 25.0 50.0 0101_101 42.9 83.3 3 128.6 250.0 3.5 150.0 291.7 5 25.7 50.0 0101_110 41.7 83.3 3 125.0 250.0 4 166.7 333.3 5 25.0 50.0 0101_111 41.7 83.3 3 125.0 250.0 4.5 187.5 375.0 5 25.0 50.0 0110_000 60.0 120.0 2.5 150.0 300.0 2.5 150.0 300.0 6 25.0 50.0 0110_001 60.0 120.0 2.5 150.0 300.0 3 180.0 360.0 6 25.0 50.0 0110_010 60.0 120.0 2.5 150.0 300.0 3.5 210.0 420.0 6 25.0 50.0 0110_011 60.0 120.0 2.5 150.0 300.0 4 240.0 480.0 6 25.0 50.0 0110_100 60.0 120.0 2.5 150.0 300.0 4.5 270.0 540.0 6 25.0 50.0 0110_101 60.0 120.0 2.5 150.0 300.0 5 300.0 600.0 6 25.0 50.0 0110_110 60.0 120.0 2.5 150.0 300.0 6 360.0 720.0 6 25.0 50.0 0111_000 Reserved 0111_001 50.0 100.0 3 150.0 300.0 3 150.0 300.0 6 25.0 50.0 0111_010 50.0 100.0 3 150.0 300.0 3.5 175.0 350.0 6 25.0 50.0 0111_011 50.0 100.0 3 150.0 300.0 4 200.0 400.0 6 25.0 50.0 0111_100 50.0 100.0 3 150.0 300.0 4.5 225.0 450.0 6 25.0 50.0 1000_000 Reserved 1000_001 66.7 133.3 3 200.0 400.0 3 200.0 400.0 8 25.0 50.0 Table 18. Clock Configurations for PCI Host Mode (PCI_MODCK=1)1,2 (continued) Mode3 Bus Clock (MHz) CPM Multiplication Factor4 CPM Clock (MHz) CPU Multiplication Factor5 CPU Clock (MHz) PCI Division Factor6 PCI Clock (MHz) MODCK_H- MODCK[1-3] Low High Low High Low High Low High |
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