RCV56HCF PCI/CardBus Modem Designer’s Guide
3.3.4 IOM-2 Interface
The interface timing is listed in Table
Table 3-13. Timing - IOM-2 Interface
Symbol | Parameter | Min | Typ. | Max | Units | Test Condition |
tr, tf | Data clock (DCL) and frame | – | – | 30 | ns | CL = 25 pF |
| sync (FSC) rise/fall |
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tDCL | Data clock period (note 1) | 565 | 651 | 735 | ns | CL = 25 pF |
twH, twL | Data clock pulse width high/low | 200 | 310 | 420 | ns |
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tsD | Data setup | 32 | – | – | ns |
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thD | Data hold | 32 | – | – | ns |
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tdF | Frame advance | 0 | 65 | 130 | ns | CL = 25 pF |
thF | Frame hold | 20 | – | – | ns | CL = 25 pF |
tdDC | Data delay clock | – | 20 | 100 | ns | CL = 150 pF |
tdDF | Data delay frame | – | – | 150 | ns | CL = 150 pF |
Notes: |
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1. 768 bps. |
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IOM_CLK (DCL) |
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IOM_FRAME (FSC) |
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IOM_DD (DD) | Bit N | Bit 0 | Bit 1 | Bit 2 | |
IOM_DU (DU) | |||||
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| Detail a |
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| t DCL |
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| t r | t f |
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IOM_CLK (DCL) |
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| t wH | t wL |
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| t dF | t hF |
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IOM_FRAME (FSC) |
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| t dDC |
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| t dDF |
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IOM_DU (DU) |
| Bit 0 |
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| t sD | t hD |
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IOM_DD (DD) |
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| Detail a |
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| Figure |
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1129 | ROCKWELL PROPRIETARY INFORMATION |