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MCP2150 bảng dữ liệu(PDF) 11 Page - Microchip Technology |
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MCP2150 bảng dữ liệu(HTML) 11 Page - Microchip Technology |
11 / 52 page 2001-2012 Microchip Technology Inc. Preliminary DS21655C-page 11 MCP2150 The IrDA standard specifies the following protocols: • Physical Signaling Layer (PHY) • Link Access Protocol (IrLAP) • Link Management Protocol/Information Access Service (IrLMP/IAS) The IrDA data lists optional protocols. They are: •Tiny TP • IrTran-P • IrOBEX •IrLAN •IrCOMM •IrMC •IrDA Lite Figure 2-6 shows the IrDA data protocol stack and which components are implemented by the MCP2150. FIGURE 2-6: IRDA DATA - PROTOCOL STACKS 2.9.1 IrDA DATA PROTOCOLS SUPPORTED BY MCP2150 The MCP2150 supports these required IrDA standard protocols: • Physical Signaling Layer (PHY) • Link Access Protocol (IrLAP) • Link Management Protocol/Information Access Service (IrLMP/IAS) The MCP2150 also supports some of the optional pro- tocols for IrDA data. The optional protocols that the MCP2150 implements are: •Tiny TP •IrCOMM 2.9.1.1 Physical Signal Layer (PHY) The MCP2150 provides the following Physical Signal Layer specification support: • Bidirectional communication • Data Packets are protected by a CRC - 16-bit CRC for speeds up to 115.2 kbaud • Data Communication Rate - 9600 baud minimum data rate The following Physical Layer Specification is depen- dant on the optical transceiver logic used in the application. The specification states: • Communication Range, which sets the end user expectation for discovery, recognition and perfor- mance. - Continuous operation from contact to at least 1 meter (typically 2 meters can be reached) - A low power specification reduces the objec- tive for operation from contact to at least 20 cm (low power and low power) or 30 cm (low power and standard power). IrComm (1) IR Link Management - Mux (IrLMP) IR Link Access Protocol (IrLAP) Optional IrDA data protocols not Supported by the MCP2150 supported by the MCP2150 IrTran-P IrObex IrLan IrMC LM-IAS Tiny Transport Protocol (Tiny TP) Synchronous 4PPM (4 Mb/s) Synchronous Serial IR (1.152 Mb/s) Asynchronous Serial IR (2) (9600 -115200 b/s) Note 1: The MCP2155 implements the 9-wire “cooked" service class serial replicator. 2: An optical transceiver is required. 21655C.book Page 11 Thursday, January 10, 2013 12:57 PM |
Số phần tương tự - MCP2150_13 |
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Mô tả tương tự - MCP2150_13 |
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