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The Infrared Wireless Expert

ACT-IR8250P

Specification

6. IR8250P Parts ID and Firmware Number System

ACT-IR8250P-####

(Please contact [email protected] or [email protected] for updated firmware and parts #)

© Copyright 2003-2005 ACTiSYS Corp. Page 11 of 25

Jan 28, 2005

Rev. 0.44

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Содержание ACT-IR8250P

Страница 1: ...94539 Tel 510 490 8024 Fax 510 623 7268 Website http www actisys com E mail irda info actisys com ACT IR8250P IrDA Compliant Protocol Processor Specification Copyright 2003 2005 ACTiSYS Corporation A...

Страница 2: ...mples Added Eval Kit PCB dimensions and circuit schematics Rev 0 31 12 19 2003 Updated reference circuit in more detail Rev 0 4 01 12 2004 Revised Appendix 1 for Development Kit Rev 0 41 03 31 2004 Re...

Страница 3: ...m 11 7 Connect ACT IR8250P to a Host Device with RS232 Port 12 8 Implementation Notice 13 9 In System Programming in ACT IR8250P 14 10 ACT IR8250P Evaluation Kit IR8250PEK and IR8250PEKK 15 11 Charact...

Страница 4: ...ckage In system programmable FLASH facilitates firmware changes or updates The evaluation kit IR8250PEK includes AC power supply RS232 level translators and PC software for in system re programming of...

Страница 5: ...The Infrared Wireless Expert ACT IR8250P Specification ACT IR8250P Copyright 2003 2005 ACTiSYS Corp Page 4 of 25 Jan 28 2005 Rev 0 44...

Страница 6: ...has only a wired serial interface The ACT IR8250P will handle all the detail about IrDA protocol It sends receives only user data to from the host device via the wired serial interface with hardware f...

Страница 7: ...from host High Host not ready to accept TX Low Host ready to accept TX P3 0 11 I O Reserved Keep it open P3 1 12 I O Reserved Keep it open P3 2 13 I O Reserved Keep it open P3 3 14 I O Reserved Keep...

Страница 8: ...ued Symbol Pin No I O Type Descriptions P1 3 24 I O Reserved Keep it open P1 4 25 I O Reserved Keep it open P1 5 26 I O Reserved Keep it open P1 6 27 I O Reserved Keep it open P1 7 28 I O Reserved Kee...

Страница 9: ...e refer to right figure 4 2 Crystal circuit IR8250P needs a specified clock to operate please refer to right figure 4 3 Host Interface The host interface of IR8250P is a full duplex asynchronous seria...

Страница 10: ...most transceiver The data is transmit by pin IR_TX and data received by nIR_RX IR_SD can shut down transceiver when IR8250P is disabled This pin is optional The below figure is the signal specificatio...

Страница 11: ...l Once awaken it will either actively communicate with an IrDA Primary device PC PDA Cell phone etc or go back to sleep if no IrDA Primary is there 5 IrDA Protocols Supported The following figure is t...

Страница 12: ...250P Specification 6 IR8250P Parts ID and Firmware Number System ACT IR8250P Please contact irda info actisys com or info actisys com tw for updated firmware and parts Copyright 2003 2005 ACTiSYS Corp...

Страница 13: ...a RS232 interface There are a total of 7 signals between the host and the IR8250P The pin assignment and name of each signal at the chip levels are summarized in Table 1 below Please note that DTE den...

Страница 14: ...apacitor 3 Reset Pin I O type Name Comments 7 I nRST Active low reset This signal can be generated by the host a RC circuit or a RESET chip It supports Brown out feature 4 IrDA Transceiver Pin I O typ...

Страница 15: ...converted to RS232 Level and connected to the RxD input of PC COM Port 4 PC COM Port DTR output must be converted to 3 3V Logic Level and connected to Enable input at Pin 8 P2 0 of IR8250P This signal...

Страница 16: ...ce connector A more useful Evaluation Kit Full Set is ACT IR8250PEKK which is IR8250PEK IR4000US notebook desktop USB IrDA adapter This is to test IR8250P connected to your device to exchange IrDA dat...

Страница 17: ...ootprint dimensions part number supplier and pinout spec for the connector J1 on IR8250x0PMB and IR8250PDB boards are as follows Molex part number SD 48148 you can get dimensional information at www m...

Страница 18: ...The Infrared Wireless Expert ACT IR8250P Specification J1 Connector CONN JST M 10Pin Copyright 2003 2005 ACTiSYS Corp Page 17 of 25 Jan 28 2005 Rev 0 44...

Страница 19: ...470nF 16V C4 470nF 16V C2 470nF 16V C5 470nF 16V DSR RxD CTS RTS TxD DTR IR82x0PEK Board Yuwei 1 2 J11 ACTISYS CORP CONFIDENTIAL Copyright C 2003 2003 ACTiSYS Corp 0 3 D8 D7 R1 1k R4 1k D10 D9 R5 1k...

Страница 20: ...ontrol to host TX Flow control from host Status to host Enable from host High idle stop bit 1 bit Low start bit 0 bit Low start bit 0 bit High idle stop bit 1 bit High IR8250P not ready to accept RX L...

Страница 21: ...iability NOTE All voltages referenced to VSS Recommended operating conditions Parameter MIN TYPICAL MAX Units Supply voltage during program execution VCC 1 8 3 3 3 6 V Supply voltage VSS 0 V Operating...

Страница 22: ...Low Host ready to accept TX High no IrDA connection Low IrDA connection active High disallow IrDA connection Low allow IrDA connection R5 30k TEST 1 VCC 2 P2 1 9 P1 5 26 P2 5 3 VSS 4 XOUT 5 XIN 6 RST...

Страница 23: ...The Infrared Wireless Expert ACT IR8250P Specification 13 Package Dimensions SOP28 Copyright 2003 2005 ACTiSYS Corp Page 22 of 25 Jan 28 2005 Rev 0 44...

Страница 24: ...The Infrared Wireless Expert ACT IR8250P Specification TSSOP28 Copyright 2003 2005 ACTiSYS Corp Page 23 of 25 Jan 28 2005 Rev 0 44...

Страница 25: ...d IR8250PDB by using the short 10 pin cable connectors 2 Plug the DC power in P1 connector 5V to 12V DC is fine 3 Connect IR82x0PMB DB9F directly or use DB9M to DB9F extension cable straight through n...

Страница 26: ...these data to host device 6 LED D5 When it lights up means IR8250P enables its CTS D5 lights off means IR8250P is not allowed to receive any data from host device e g buffer full etc 7 J3 and J5 If y...

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