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VSC7440 датащи(PDF) 88 Page - Microsemi Corporation |
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VSC7440 датащи(HTML) 88 Page - Microsemi Corporation |
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88 / 444 page ![]() Functional Descriptions VMDS-10492 VSC7440 Datasheet Revision 4.2 71 3.14.1 Initializing the Analyzer Before the analyzer can be configured, the RAM-based configuration registers must be initialized by setting ANA_AC:RAM_CTRL:RAM_INIT.RAM_ENA and ANA_AC:RAM_CTRL:RAM_INIT.RAM_INIT to 1. The ANA_AC:RAM_CTRL:RAM_INIT.RAM_INIT register is reset by hardware when initialization is complete. For information about initializing VCAP CLM, VCAP IS2, and VCAP LPM, see Bringing Up VCAP, page 58. 3.15 VCAP CLM Keys and Actions The VCAP CLM is part of the analyzer and enables frame classification using VCAP functionality. This section provides an overview of all available VCAP CLM keys, followed by information about each key and action. For information about how to select which key to use and how the VCAP CLM interacts with other parts of the analyzer classifier, see VCAP CLM Processing, page 115. VCAP CLM supports a number of different keys that can be used for different purposes. The keys are of type X1, X2, X4, X8, or X16, depending on the number of words each key uses. The keys are grouped after size as shown in the following table. 3.15.1 Keys Overview The following table lists all VCAP CLM keys and fields and provides a quick overview of which fields are available in which keys. Table 57 • VCAP CLM Keys and Sizes Key Name Key Size Number of Words Key Type SGL_MLBS 35 bits 1 word X1 type TRI_VID 69 bits 2 words X2 type DBL_MLBS 68 bits TRI_VID_IDX 69 bits MLL 136 bits 4 words X4 type TRI_MLBS 129 bits PURE_5TUPLE_IP4 137 bits CUSTOM_4 136 bits LL_FULL 272 bits 8 words X8 type NORMAL 266 bits NORMAL_5TUPLE_IP4 255 bits CUSTOM_2 272 bits NORMAL_7TUPLE 536 bits 16 words X16 type CUSTOM_1 527 bits |
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