LZ85202
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IrDA Control Host Controller with USB Interface User’s Guide
USB Dongle Operation.....................................................................................26
The Communication Between USB Dongle and Host (Windows 98)...........26
USB-Enumeration on the USB Dongle.........................................................27
USB-Enumeration for Peripherals................................................................28
Dongle Driver Request.................................................................................29
HID Driver Request ......................................................................................29
Pinouts.................................................................................................................30
Pinout Functions and Descriptions...................................................................31
Block Diagram .....................................................................................................32
CPU..................................................................................................................32
PLL (Phase Lock Loop) and CG (Clock Generator).........................................33
USB (Universal Serial Bus)..............................................................................33
IrBC..................................................................................................................34
RAM (Random Access Memory) and ROM (Read Only Memory)...................34
Port...................................................................................................................34
Serial EEPROM............................................................................................34
Status Indicator LED.....................................................................................34
DIP Switch....................................................................................................35
Reference Documents.........................................................................................35
Appendix..............................................................................................................36
IrDA Control Definitions....................................................................................38
Parts List..........................................................................................................40