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The Infrared Wireless Expert

ACT-IR8200D

Design Specification

5. Firmware architecture

The following figure is the block diagram of ACT-IR8200D protocols architecture. The red colored
blocks represent different upper layers. Only one of the red colored blocks can work at same time.

IrLMP and IAS

IrLAP

IrLPT or IrCOMM 3-wire raw

IrCOMM 9-wire

Host Interface

IrPHY

Host Interface

ACT-IR8200D

TinyTP

OBEX Transport

IrDA Transceiver

Host

© Copyright 2004 ACTiSYS Corp. Page 10 of 20

Nov. 10, 2004

Rev. 0.2

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Содержание ACT-IR8200D

Страница 1: ... CA 94539 Tel 510 490 8024 Fax 510 623 7268 Website http www actisys com E mail irda info actisys com ACT IR8200D IrDA Compliant Protocol Processor Design Specification Copyright 2004 ACTiSYS Corporation All Rights Reserved Nov 10 2004 Rev 0 2 ...

Страница 2: ...ert ACT IR8200D Design Specification Revision History Revision Date Comment Rev 0 1 11 03 2004 Created Rev 0 2 11 10 2004 Add comset_IR100SD and others on chapter 6 7 Copyright 2004 ACTiSYS Corp Page 1 of 20 Nov 10 2004 Rev 0 2 ...

Страница 3: ...3 2 Overview 5 3 Pins Description 6 4 Device Operation 8 5 Firmware architecture 10 6 How to configure IR8200D 12 7 How to make IR8200D work 15 8 CHARACTERISTICS AND SPECIFICATION 16 9 Application Circuit 18 10 Package Dimensions 19 Copyright 2004 ACTiSYS Corp Page 2 of 20 Nov 10 2004 Rev 0 2 ...

Страница 4: ...6 V Current consumption 20mA standby 30mA active Small low profile plastic 52 pin QFP package Available in programmed and tested chips assembled tested boards or fully packaged devices A ready IrDA compatible evaluation board ACT IR100SD is available IR100SD is strongly recommended to test before purchase IR8200D chip A very useful Evaluation Kit Full Set is ACT IR100SDK which is IR100SD IR4000US ...

Страница 5: ...The Infrared Wireless Expert ACT IR8200D Design Specification ACT IR8200D Copyright 2004 ACTiSYS Corp Page 4 of 20 Nov 10 2004 Rev 0 2 ...

Страница 6: ...ed serial interface The ACT IR8200D will handle all the detail regard IrDA protocols It sends and receives only user data to from the host device via the wired serial interface with hardware flow control IrDA has two modes one is Primary and the other is Secondary The difference between these two modes is that a Primary mode device initiates the discovery negotiation and connection sequence to Sec...

Страница 7: ... output P4 1 21 I O General I O pin not used P4 0 22 I O General I O pin not used P3 0 RXD 23 I Receive data signal from host same as UART receiver P3 1 TXD 24 O Transmit data signal to host same as UART transmitter P3 2 25 I O General I O pin not used P3 3 26 I O General I O pin not used P3 4 27 I O General I O pin not used P3 5 RTS 28 O Ready to send If low then host can send data to 8200D P3 6 ...

Страница 8: ...B6 43 I Not used RESET_IN 44 I Reset IR8200D signal Pull it low to reset PB5 46 I Not used PB4 48 I DSR selector Hi means use the default setting Low means ignore DSR and IR8200D will be ready no matter DSR signal pin 39 is hi or low PB3 49 I CTS selector Hi means use the default setting Low means ignore CTS and IR8200D will send data to host no matter CTS signal pin 40 is hi or low PB2 50 I Host ...

Страница 9: ...refer to right figure 4 2 Crystal circuit IR8200D needs a specific clock to operate please refer to right figure 4 3 Host Interface The host interface of IR8200D is a full duplex asynchronous serial data interface The data bytes are transmitted via TX and received via RX Each data byte consists of one start bit 0 8 data bits LSB first MSB last and a stop bit 1 4 4 IR port interface Copyright 2004 ...

Страница 10: ...of IR8200D can be connected to most transceiver The data is transmit by pin IrDA_TXD and data received from IrDA_RXD The below figure is the signal specification of IrDA_TXD it sends 1 63uS pulse infrared signal out Copyright 2004 ACTiSYS Corp Page 9 of 20 Nov 10 2004 Rev 0 2 ...

Страница 11: ...tocols architecture The red colored blocks represent different upper layers Only one of the red colored blocks can work at same time IrLMP and IAS IrLAP IrLPT or IrCOMM 3 wire raw IrCOMM 9 wire Host Interface IrPHY Host Interface ACT IR8200D TinyTP OBEX Transport IrDA Transceiver Host Copyright 2004 ACTiSYS Corp Page 10 of 20 Nov 10 2004 Rev 0 2 ...

Страница 12: ...g IR8200D must implement that part itself For example Suppose that you have a Pocket PC which is connecting to IR8200D by using OBEX protocol Pocket PC it called Client in OBEX will send a connect command first and waits Server IR8200D s host your device to reply connect confirmed The connect command is like 80 00 07 00 01 01 FF since IR8200D supports OBEX transport so IR8200D has received these 7...

Страница 13: ...on PCB you should wire all 6 host signals of IR8200D to a DB9F connector those wires are TXD RXD DTR DSR RTS and CTS After these done you can change the configuration of IR8200D Since customer may not want to wire those signals to a DB9 we recommend that customer can buy our IR8200D evaluation board IR100SD to test and configure before purchase Please contact ACTiSYS to get the information of IR10...

Страница 14: ...t exceed 2K bytes Ignore DSR If host system has no DSR signals then this bit should be ignored But since this signal triggers IR8200D in and out Primary mode it will be no way to ask IR8200D disconnecting IrDA link and IR8200D will always be in Primary once power on In another word once it is set to 1 you are not able to control IR8200D at all until power it off and reset it to 0 This bit is recom...

Страница 15: ...s when IR8200D is in Primary There is another choice for customer if you don t want change the parameters by program but manual or you already soldered IR8200D on PCB The PB7 PB0 pins on IR8200D can be configured host baud rate and hardware flow control signals to fit your requirements but you can change the Primary protocol or discovery time or slot here Please see the pin description to get info...

Страница 16: ...ry Secondary it probably enters Secondary mode when it accepts the discovery command from other Primary device Suppose there is two Primary devices are discovering to each other it always has one device to be Primary and another is to be Secondary after negotiation 2 When IR8200D is in Secondary Pull DSR to low then IR8200D will be ready to accept the inquiry which comes from a Primary device Once...

Страница 17: ...d Wireless Expert ACT IR8200D Design Specification 8 CHARACTERISTICS AND SPECIFICATION Absolute Maximum Ratings Operating Conditions DC Characteristics Copyright 2004 ACTiSYS Corp Page 16 of 20 Nov 10 2004 Rev 0 2 ...

Страница 18: ...The Infrared Wireless Expert ACT IR8200D Design Specification Copyright 2004 ACTiSYS Corp Page 17 of 20 Nov 10 2004 Rev 0 2 ...

Страница 19: ... VDD 8 GND 9 TSTAT 10 VSTBY 11 TCK 12 TMS 13 P4 7 14 P4 6 15 P4 5 16 P4 4 17 P4 3 18 GND 19 P4 2 LED 20 P4 1 21 P4 0 22 P3 0 RXD 23 P3 1 TXD 24 P3 2 25 P3 3 26 P3 4 27 P3 5 RTS 28 P3 6 29 P3 7 30 XTAL1 31 XTAL2 32 VDD 33 P1 0 34 P1 1 DTR 35 P1 2 IrDA_RXD 36 P1 3 IrDA_TXD 37 P1 4 DCD 38 P1 5 DSR 39 P1 6 CTS 40 P1 7 RI 41 PB7 42 PB6 43 RESET_IN 44 GND 45 PB5 46 VDD 47 PB4 48 PB3 49 PB2 50 PB1 51 PB0...

Страница 20: ...The Infrared Wireless Expert ACT IR8200D Design Specification 10 Package Dimensions 52 PIN QFP Copyright 2004 ACTiSYS Corp Page 19 of 20 Nov 10 2004 Rev 0 2 ...

Страница 21: ...The Infrared Wireless Expert ACT IR8200D Design Specification Copyright 2004 ACTiSYS Corp Page 20 of 20 Nov 10 2004 Rev 0 2 ...

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