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PC87109VBE

National Semiconductor
Part Number PC87109VBE
Manufacturer National Semiconductor
Description PC87109VBE Advanced UART and Infrared Controller
Published Mar 22, 2005
Detailed Description PC87109VBE Advanced UART and Infrared Controller Preliminary November 1997 PC87109VBE Advanced UART and Infrared Contr...
Datasheet PDF File PC87109VBE PDF File

PC87109VBE
PC87109VBE

Overview
PC87109VBE Advanced UART and Infrared Controller Preliminary November 1997 PC87109VBE Advanced UART and Infrared Controller General Description The PC87109 is a serial communication device with infrared capability.
It supports 6 modes of operation and is backward compatible with the 16550 and 16450 (except for the MODEM control functions).
The operational modes are: UART, Sharp-IR, IrDA 1.
0 SIR, IrDA 1.
1 MIR and FIR, and Consumer Electronics IR (also referred to as TV Remote or Consumer Remote Control).
In order to support existing legacy software based upon the 16550 UART, the PC87109 provides a special fallback mechanism that automatically switches the device to 16550 compatibility mode when the baud generator divisor is accessed through the legacy ports in bank 1.
The device architecture has been optimized to meet the requirements of a variety of UART and infrared based applications.
DMA support for all operational modes has been incorporated into the architecture.
The device uses...


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