IRCC datasheet(43/79 Pages) SMSC

tên linh kiện	IRCC

Giải thích chi tiết về linh kiện	INFRARED COMMUNICATIONS CONTROLLER

PDF	79 Pages

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nhà sản xuất	SMSC [SMSC Corporation]

Trang chủ	http://www.smsc.com

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Table 28 - Interrupt Control Table

FIFO

MODE

ONLY

INTERRUPT

IDENTIFICATION

INTERRUPT SET AND RESET FUNCTIONS

BIT 3

BIT 2

BIT 1

BIT 0

PRIORITY

LEVEL

INTERRUPT

TYPE

INTERRUPT

SOURCE

INTERRUPT

RESET

CONTROL

None

Highest

Receiver Line

Status

Overrun Error,

Parity Error,

Framing Error

or Break

Interrupt

Reading the

Line Status

Second

Received Data

Available

Receiver Data

Available

Read

Receiver

Buffer or the

FIFO drops

below the

trigger level.

Second

Character

Timeout

Indication

No Characters

Have Been

Removed From

or Input to the

RCVR FIFO

during the last 4

Char times and

there is at least

1 char in it

during this time

Reading the

Receiver

Buffer

Third

Transmitter

Holding Register

Empty

Transmitter

Holding

Reading the

IIR Register (if

Source of

Interrupt) or

Writing the

Transmitter

Holding

Fourth

MODEM Status

Clear to Send or

Data Set Ready

or Ring

Indicator or

Data Carrier

Detect

Reading the

MODEM

Status

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