ACTiSYS IR8200D Leitfaden

48511 Warm Springs Blvd., Suite 206, Fremont, 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

Nov. 10, 2004 Rev.0.2

The Infrared Wireless Expert 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

Rev. 0.2

The Infrared Wireless Expert ACT-IR8200D

Design Specification

Table of Contents

1. Features........................................................................................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

Rev. 0.2

The Infrared Wireless Expert ACT-IR8200D

Design Specification

1. Features

 A complete IrDA Protocol stack in a single chip.

 No any driver program is needed.

 Includes IrPHY encoding/decoding and interfaces directly to Infrared transceivers for data rate

up to 115.2kbit/s. Only an external Infrared transceiver is needed to complete an IrDA compliant

infrared communication subsystem.

 Supports mandatory IrDA layer: IrPHY, IrLAP, IrLMP and IAS.

 Supports upper layers TinyTP, IrCOMM, IrLPT, and OBEX transport.

 Supports host baud rate from 1.2kbit/s to 115.2kbit/s, which is changed by PC utility or 8 pins on

chip. IrDA baud rate from 9.6kbit/s to 115.2kbit/s, which is flexible, setting by IrDA devices.

 IR frame and Host buffer are 2048 bytes separately.

 Low supply voltage, 3.0 V to 3.6 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

(notebook/desktop USB-IrDA adapter). This is to test IR100D (connected to your device),

to exchange IrDA data with IR4000US (connected to PC USB port), running hyper-terminal

on top of Windows IrDA driver. To avoid debugging multiple issues: e.g. PDA application

IrDA SW activated and behaves properly, with the matching protocol layer? IR100SD to host

interface issues (UART data rates, flow control, data bit/parity/stop bit, UART signal pins,

power levels)? Or performance issues (throughput, distance, error rate/dropping bits)?

Rev. 0.2

The Infrared Wireless Expert ACT-IR8200D

Design Specification

ACT-IR8200D

Rev. 0.2

The Infrared Wireless Expert ACT-IR8200D

Design Specification

2. Overview

The ACT-IR8200D is a low cost, high performance and high-integration micro-controller, with on-chip

IrDA protocol stack and on-chip Infrared physical encoder/decoder. It provides a serial interface

(UART) to a host device that intends to have Infrared communication capability. The host device can

be any equipment or devices that need to communicate with IrDA enabled portable or tablet PC,

PDA, cellular phone and hand held data terminal, via IrDA beam and protocol but has only a wired

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 Secondary mode device, and decides IrDA protocol parameters. Secondary

mode device always waits for commands from Primary mode device. Both modes can run different

protocols, and both may send or receive user data. ACT-IR8200D supports both Primary and

Secondary modes. Fig.1 is system diagram.

Fig. 1

Rev. 0.2

The Infrared Wireless Expert ACT-IR8200D

Design Specification

3. Pins Description

Symbol Pin No. I/O

Type Descriptions

VDD 6,8,33,47 Digital and Analog supply voltage, positive terminal.

GND 9,19,45 Ground.

PD1 1 I/O General I/O pin, not used.

PC7 2 I/O General I/O pin, not used.

TDO 3 O JTAG signals, not used.

TDI 4 I JTAG signals, not used.

DEBUG 5 O JTAG signals, not used.

TERR 7 O JTAG signals, not used.

TSTAT 10 O JTAG signals, not used.

VSTBY 11 I SRAM standby voltage input, not used.

TCK 12 I JTAG signals, not used.

TMS 13 O JTAG signals, not used.

P4.7 14 I/O General I/O pin, not used.

P4.6 15 I/O General I/O pin, not used.

P4.5 16 I/O General I/O pin, not used.

P4.4 17 I/O General I/O pin, not used.

P4.3 18 I/O General I/O pin, not used.

P4.2/LED 20 O Status LED 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 29 I/O General I/O pin, not used.

P3.7 30 I/O General I/O pin, not used.

XTAL1 31 I Oscillator input pin for system clock. 22.1184MHz is required.

XTAL2 32 O Oscillator output pin for system clock.

P1.0 34 I/O General I/O pin, not used.

P1.1/DTR 35 O Device terminal is ready. If low means IR8200D established IrDA link.

P1.2/IrDA_RXD 36 I Infrared signal input pin from IrDA transceiver.

P1.3/IrDA_TXD 37 I Infrared signal output pin to IrDA transceiver.

P1.4/DCD 38 I Device carrier detect, not used.

Rev. 0.2

The Infrared Wireless Expert ACT-IR8200D

Design Specification

PIN Description (Continued)

Symbol Pin

No.

I/O

Type Descriptions

P1.5/DSR 39 I Data Set Ready. If low means host is ready and IR8200D can

start to establish IrDA link(If Primary mode) or ready to be link

by other IrDA Primary device(if secondary mode) .

P1.6/CTS 40 I Clear to send. If low then 8200D is allowed sending data to host.

P1.7/RI 41 I Ring-in, not used.

PB7 42 I Configuration selector. Hi means use default setting. Low means

use the setting on PB4~PB0.

Default setting means the configuration is setting by

Comset_IR100SD program.

PB6 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

in 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 interface baud rate selector pin 2. See PB0.

PB1 51 I Host interface baud rate selector pin 1. See PB0

PB0 52 I Host interface baud rate selector pin 0.

PB2 PB1 PB0 host baud rate

lo lo lo 1.2kbit/s

lo lo hi 2.4kbit/s

lo hi lo 4.8kbit/s

lo hi hi 9.6kbit/s

hi lo lo 19.2kbit/s

hi lo hi 38.4kbit/s

hi hi lo 57.6kbit/s

hi hi hi 115.2kbit/s

Rev. 0.2

The Infrared Wireless Expert ACT-IR8200D

Design Specification

4. Device Operation

4.1 RESET circuit

IR8200D will be reset when RESET_IN is pulled

low. It needs a 10K ohms resistor, 0.1uF

capacitor and a diode to implement the reset

circuit. Please 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

Rev. 0.2

The Infrared Wireless Expert ACT-IR8200D

Design Specification

The IR port 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.

Rev. 0.2

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