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MCP2155 데이터시트(PDF) 6 Page - Microchip Technology |
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MCP2155 데이터시트(HTML) 6 Page - Microchip Technology |
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6 / 52 page ![]() MCP2155 DS21690B-page 6 Preliminary 2001-2013 Microchip Technology Inc. 1.1.1 SIGNAL DIRECTIONS Table 1-3 shows the direction of the MCP2155 signals. The MCP2155 is designed for use in Data Communi- cation Equipment (DCE) applications. TABLE 1-3: MCP2155 SIGNAL DIRECTION CD 17 17 19 I ST Carrier Detect. The state of this bit is communicated to the IrDA Primary Device. 1 = No Carrier Present 0 = Carrier Present BAUD1 18 18 20 I ST BAUD1:BAUD0 specify the baud rate of the device. For more information see Section 2.5.1. Pin Name Pin Number Pin Type Buffer Type Description PDIP SOIC SSOP Legend: TTL = TTL compatible input ST = Schmitt Trigger input with CMOS levels I = Input O = Output P = Power CMOS = CMOS compatible input DB-9 Pin # Signal Direction Comment 1CD HC MCP2155 Carrier Detect 2 RX MCP2155 HC Received Data 3TX HC MCP2155 Transmit Data 4DTR HC MCP2155 Data Terminal Ready 5 GND — Ground 6 DSR MCP2155 HC Data Set Ready 7RTS HC MCP2155 Request to Send 8 CTS MCP2155 HC Clear to Send 9RI HC MCP2155 Ring Indicator Legend: HC = Host Controller 21690B.book Page 6 Thursday, January 10, 2013 1:06 PM |
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