The Infrared Wireless Expert
ACT-IR8250P
Specification
1. Features
A complete IrDA Protocol stack in a single chip, includes mandatory protocols (IrPHY, IrLAP,
IrLMP) and optional protocols (IrLPT, TinyTP, OBEX transport or TinyTP with
customized IAS class name for IrSocket).
Also Includes IrPHY encoding/decoding, and interfaces directly to Infrared transceivers for data
rate from 9.6kbps up to 115.2kbit/s. Only an external Infrared transceiver is needed to complete
an IrDA compliant infrared communication subsystem.
ACT-IR8250P supports IrDA Secondary mode only.
Supports 64 bytes data packet for IrDA IrLAP frame.
Interfaces to Host device via a full function UART port.
Supports host baud rate from 300kbit/s to 115.2kbit/s selecting by programmable settings.
Programmable Device name, IAS class name and data format setting.
Available in programmed and tested chip (IR8250P), assembled & tested board (IR8250PDB),
or assembled & tested evaluation kit (IR8250PEK).
Low supply voltage, 3.0 V to 3.6 V.
Low current consumption; 2uA standby, 3mA active.
Small low profile plastic 28-pin SSOP/TSSOP package.
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 firmware and future firmware options.
ACT-IR8250PEK consists of: IR82x0PMB (motherboard) + IR8
Self-downloadable SW to program IR8250P firmware.
1) IR82x0PMB: RS232 level converter, DB9 connector, probe pins and IR8250PDB connector.
2) IR8250PDB (daughter board for direct connection to your embedded PCB):
Self-contained full-function IrDA module, which consists of: IR8250P protocol IC +
IrDA trans 3.3V interface connector.
A very useful “Evaluation Kit Full Set” is ACT-IR8250PEKK, which is: IR8 IR4000US
(notebook/desktop USB-IrDA adapter). This is to test IR8250P (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? IR8250P to host
interface issues (UART data rates, flow control, data bit/parity/stop bit, UART signal pins, power
levels)? Performance issues (throughput, distance, error rate/dropping bits)?
© Copyright 2003-2005 ACTiSYS Corp. Page 3 of 25
Jan 28, 2005
Rev. 0.44
