參數(shù)資料
型號(hào)： MT90870
廠商： Zarlink Semiconductor Inc.
英文描述： Flexible 12 k Digital Switch (F12kDX)
中文描述： 靈活的12畝數(shù)字交換機(jī)（F12kDX）
文件頁數(shù)： 6/86頁
文件大小： 2093K
代理商： MT90870
MT90870
Data Sheet
List of Figures
6
Zarlink Semiconductor Inc.
Figure 1 - MT90870 Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2 - MT90870 PBGA Connections (272 PBGA) Pin Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 3 - 8,192 x 4,096 Channels (16 Mb/s), Bidirectional Switching. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 4 - 12,288 x 12,288 Channels (16 Mb/s), Unidirectional Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 5 - 6 K x 6 K Non-Blocking Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 6 - Local Port Timing Diagram for 2,4,8 and 16 Mb/s stream rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 7 - Backplane Port Timing Diagram for 2, 4, 8, 16 and 32 Mb/s stream rates . . . . . . . . . . . . . . . . . . . . . . 23
Figure 8 - Backplane and Local Frame Pulse Alignment for Data Rates of 2 Mb/s, 4 Mb/s, 8 Mb/s and 16 Mb/s. 24
Figure 9 - Backplane and Local Input Channel Delay Timing Diagram (8 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 10 - Backplane and Local Input Bit Delay Timing Diagram for Data Rate of 16 Mb/s. . . . . . . . . . . . . . . . . 26
Figure 11 - Backplane and Local Input Bit Delay Timing Diagram for Data Rate of 8 Mb/s. . . . . . . . . . . . . . . . . . 27
Figure 12 - Backplane and Local Output Advancement Timing diagram for Data Rate of 16 Mb/s. . . . . . . . . . . . 28
Figure 13 - Local Port External High Impedance Control Bit Timing (ST-Bus Mode) . . . . . . . . . . . . . . . . . . . . . . 32
Figure 14 - Backplane Port External High Impedance Control Bit Timing (Non-32 Mb/s mode) . . . . . . . . . . . . . . 36
Figure 15 - Backplane Port External High Impedance Control Timing (32 Mb/s Mode) . . . . . . . . . . . . . . . . . . . . 40
Figure 16 - Constant Switch Delay: Examples of Different Stream Rates and Routing. . . . . . . . . . . . . . . . . . . . . 41
Figure 17 - Examples of BER transmission channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 18 - Frame Boundary Conditions, ST- BUS Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 19 - Frame Boundary Conditions, GCI - BUS Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Figure 20 - Backplane and Local Clock Timing Diagram for ST-BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Figure 21 - Backplane and Local Clock Timing for GCI-BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Figure 22 - ST-BUS Backplane Data Timing Diagram (8 Mb/s, 4 Mb/s, 2 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Figure 23 - ST-BUS Backplane Data Timing Diagram (32 Mb/s, 16 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Figure 24 - GCI BUS Backplane Data Timing Diagram (8 Mb/s, 4 Mb/s, 2 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . 80
Figure 25 - GCI BUS Backplane Data Timing Diagram (32 Mb/s, 16 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 26 - ST-BUS Local Timing Diagram (16 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Figure 27 - ST-BUS Local Data Timing Diagram (8 Mb/s, 4 Mb/s, 2 Mb/s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Figure 28 - Serial Output and External Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 29 - Output Driver Enable (ODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 30 - Motorola Non-Multiplexed Bus Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
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