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IRCC 데이터시트(PDF) 20 Page - SMSC Corporation

부품명 IRCC
상세설명  INFRARED COMMUNICATIONS CONTROLLER
PDF  79 Pages
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제조업체  SMSC [SMSC Corporation]
홈페이지  http://www.smsc.com
Logo SMSC - SMSC Corporation

IRCC 데이터시트(HTML) 20 Page - SMSC Corporation

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The SIR Interaction Pulse is controlled by the
IrCC configuration register SIP ENABLE bit and
a timer. The IrCC transmits an SIR Interaction
Pulse every 500ms when the SIP enable is
active, an IrDA FIR mode has been selected,
and the transmitter or receiver is not otherwise
engaged.
The timer that controls the SIP pulse is reset
whenever 1) the SIP enable is inactive, 2) an
active FIR frame is being transmitted or received
or, 3) during an active SIP pulse. The timer is
decrementing whenever the SIP enable bit is
active and the SIP pulse generator, the
transmitter, and the receiver are inactive. When
the timer reaches zero, the SIP pulse generator
is activated (Figure 13).
1.6us
8.7us
SIP
ActiveSIP
Time
FIGURE 12 - SIR INTERACTION PULSE
Active Frame
SIP Enable
Reset SIP
Timer
SIP Timer
Countdown
Active SIP
Time
SIP Timer
Zero
FIGURE 13 - SIP CONTROL TIMING



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