MT90221 参数 Datasheet PDF下载

MT90221

List of Figures

Figure 2 - Pin Connections ..................................................................................................................................... 3

Figure 3 - Functional Block Diagram -Transmitter in IMA Mode........................................................................... 10

Figure 4 - Functional Block Diagram of the Transmitter in UNI Mode ................................................................... 15

Figure 5 - Cell Delineation State Diagram ............................................................................................................ 15

Figure 6 - SYNC State Block Diagram ................................................................................................................. 16

Figure 7 - The MT90220 Receiver Circuit in IMA Mode ....................................................................................... 17

Figure 8 - Example of UNI Mode Operation ......................................................................................................... 23

Figure 9 - PCM Mode 2 and 6: ST-BUS Interface for T1 (Spaced Mapping) ....................................................... 26

Figure 10 - PCM Mode 2 and 6: ST-BUS Interface for T1 (Grouped Mapping) ................................................... 26

Figure 11 - PCM Mode 4 and 8: ST-BUS Interface for E1 ................................................................................... 27

Figure 12 - Mode 1 and 5: Generic PCM Interface for T1 .................................................................................... 28

Figure 13 - Mode 3 and 7: Generic PCM Interface for E1 .................................................................................... 29

Figure 14 - TXCK and TXSYNC Output Pin Source Options ............................................................................... 29

Figure 15 - ATM Interface to MT90220 ................................................................................................................ 32

Figure 16 - ATM Interface to Multiple MT90220s ................................................................................................. 32

Figure 17 - ATM Mixed-Mode Interface to One MT90220.................................................................................... 33

Figure 18 - IRQ Register Hierarchy ...................................................................................................................... 34

Figure 19 - PCM MODE 2 AND 4: Synchronous ST-BUS Mode.......................................................................... 78

Figure 20 - PCM MODE 2 and 4 CTC Mode ......................................................................................................... 79

Figure 21 - PCM MODE 2 AND 4: ITC Mode ....................................................................................................... 80

Figure 22 - PCM MODE 1 and 3: Generic PCM System Interface........................................................................ 81

Figure 23 - PCM MODE 5 and 7: Asynchronous Operations ................................................................................ 82

Figure 24 - ST-BUS Functional Timing Diagram .................................................................................................. 84

Figure 25 - ST-BUS Timing Diagram.................................................................................................................... 85

Figure 26 - Generic PCM Interface Timing Diagram ............................................................................................. 86

Figure 27 - Detailed Generic PCM Interface Timing Diagram .............................................................................. 87

Figure 28 - Setup and Hold Time Definition ......................................................................................................... 89

Figure 29 - Tri-State Timing.................................................................................................................................. 89

Figure 30 - External Memory Interface Timing - Read Cycle ............................................................................... 90

Figure 31 - External Memory Interface Timing - Write Cycle................................................................................ 91

Figure 32 - CPU Interface Timing - Read Access ................................................................................................ 93

Figure 33 - CPU Interface Motorola Timing - Write Access.................................................................................. 94

Figure 34 - CPU Interface Intel Timing - Write Access......................................................................................... 95

Figure 35 - JTAG Port Timing............................................................................................................................... 96

Figure 36 - System Clock and Reset.................................................................................................................... 97

Figure 37 - Metric Quad Flat Package - 208 Pin .................................................................................................. 98

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