IRCC datasheet(9/79 Pages) SMSC

9 / 79 page

CONSUMER IR (TV REMOTE)

INTRODUCTION

The IrCC Consumer IR (TV Remote) block is a

general-purpose programmable Amplitude Shift

Keyed serial communications interface that

includes

Carrier

Frequency

Divider,

Programmable Receive Carrier Range Sensitivity

(Figure 4).

The Consumer IR block transfers data between

the SCE and Output Multiplexer without framing

as a fixed bit-cell serial NRZ data stream. The

components of this block can also modulate and

demodulate serial data at programmable bit rates

and carrier frequencies.

Variable length encoding and all packet framing

is handled by system software. Consequently,

many encoding methods, modulation frequencies

and bit rates can be supported, including 38KHz

PPM, PWM and RC-5 TV Remote formats.

Control Register, the Consumer IR Carrier Rate

SCE

Transmit Bit-Rate

Divider

Carrier Frequency

Divider

Clock

Programmable

Receive Carrier

Sense

Receive Bit-Rate

Divider

TV Tx

Tx Enable

Range

Sync

Rx Enable

Encoder/Decoder

Carrier Off

TV Rx

FIGURE 4 - IRCC CONSUMER IR (TV REMOTE) BLOCK

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