IRCC datasheet(8/79 Pages) SMSC

Il numero della parte	IRCC

Spiegazioni elettronici	INFRARED COMMUNICATIONS CONTROLLER

PDF	79 Pages

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Produttore elettronici	SMSC [SMSC Corporation]

Homepage	http://www.smsc.com

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OPERATION MODES

RAW IR

In Raw mode the state of the IR emitter and

detector can be directly accessed through the

host interface (Figure 3).

The IR emitter tracks the Raw Tx Control bit. For

example, depending on the state of the Tx

Polarity control a logic '1' may turn the LED on

and a logic '0' may turn the LED off. Care must

be taken in software to ensure that the LED is

not on continuously.

The Raw Rx Control bit represents the state of

the PIN diode. For example, depending on the

state of the Rx Polarity control a logic '1' may

mean no IR is detected, a logic '0' may mean IR

is being detected.

If an IR carrier is being

received, the Raw Rx Control bit will oscillate at

the carrier frequency.

If enabled, a Raw Mode Interrupt will be

generated when the Raw Rx Control bit

transitions to the active state, depending on the

state of the Rx Polarity control.

RAW Tx

Registers

Transition

Detect

Enable

Interrupt

Encoder/Decoder

RAW Rx

FIGURE 3 - RAW IR BLOCK DIAGRAM

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