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37C67X Datasheet(PDF) 82 Page - SMSC Corporation |
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37C67X Datasheet(HTML) 82 Page - SMSC Corporation |
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82 / 194 page  82 FAST IR The following is a description of the top level connection for the Fast IR block in the FDC37C67x. Refer to the Infrared Communications Controller Specification for more information on Fast IR. There are two types of transceiver modules used for Fast IR: one has a mode pin (IR Mode) to control it, and the other has a second receive data channel (IRRX3). The FDC37C67x has two configuration bits that can be used for these signals. These are IRMODESEL and IRRX3SEL. The following table illustrates the selection of the functions. Table 36 - DRVDEN1 MUXING Mux Controls PIN NAME IRMODESEL (LD8:CRC0.0) IRRX3SEL (LD8:CRC0.4) SELECTED FUNCTION STATE OF UNCONNECTED INPUTS DRVDEN 1 0 X DRVDEN1 (default) - 1 0 IRMODE *1 - 1 1 IRRX3 0 Note: *1 IRRX3SEL Default (0). |
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