FDC37C665IR Ver la hoja de datos (PDF) - SMSC -> Microchip

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FDC37C665IR

3/5 Volt Advanced High-Performance Multi-Mode™ Parallel Port Super I/O Floppy Disk Controller with Infrared Support

SMSC -> Microchip 

PIN NO.

NAME

91 nRequest to

Send

83 nData Terminal

Ready

93 nData Terminal

Ready

89 Transmit Data 2

DESCRIPTION OF PIN FUNCTIONS

SYMBOL

nRTS2

BUFFER

TYPE

O2

DESCRIPTION

Active low Request to Send output for

Secondary Serial Port. Handshake output

signal notifies modem that the UART is

ready to transmit data. This signal can be

programmed by writing to bit 1 of Modem

Control Register (MCR). The hardware

reset will reset the nRTS signal to inactive

mode (high). Forced inactive during loop

mode operation.

nDTR1

O2 Active low Data Terminal Ready output for

primary serial port. Handshake output

signal notifies modem that the UART is

ready to establish data communication link.

This signal can be programmed by writing

to bit 0 of Modem Control Register (MCR).

The hardware reset will reset the nDTR

signal to inactive mode (high). Forced

inactive during loop mode operation.

nDTR2

O2 Active low Data Terminal Ready output for

secondary serial port. Handshake output

signal notifies modem that the UART is

ready to establish data communication link.

This signal can be programmed by writing

to bit 0 of Modem Control Register (MCR),

The hardware reset will reset the nDTR

signal to inactive mode (high). Forced

inactive during loop mode operation.

TXD2

O12 Transmitter Serial Data output from

Secondary Serial Port.

IRTX

O12 Transmitter Serial IR Data output from

Secondary Serial Port.

9

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