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IRCC Datasheet(PDF) 62 Page - SMSC Corporation

Part # IRCC
Description  INFRARED COMMUNICATIONS CONTROLLER
PDF  79 Pages
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Manufacturer  SMSC [SMSC Corporation]
Direct Link  http://www.smsc.com
Logo SMSC - SMSC Corporation

IRCC Datasheet(HTML) 62 Page - SMSC Corporation

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62
Receive Timing
The SCE TV Remote receiver can be enabled
with the configuration register SCE Modes bits,
polled using programmed I/O, and manually
disabled when sufficient data has been collected
(Figure 31). Once enabled, the SCE receiver will
only begin to interpret line data following the first
valid zero detection.
Figure 32 illustrates how the TV Remote receiver
operates using DMA. TC disables the
receiver, sends an EOM Interrupt, and resets the
SCE Modes bits to zero.
FIFO Empty
EOM Interrupt
Tx Enable
Active Frame
Tx Reg. Empty
FIGURE 30 - TV REMOTE TRANSMIT TIMING
Rx Enable
Active Frame
Active Frame Int.
Zero Detect
FIGURE 31 - TV REMOTE MANUAL RX TIMING
TC
EOM Interrupt
Rx Enable
Active Frame
Active Frame Int.
Zero Detect
Clear FIFO
FIGURE 32 - TV REMOTE DMA RX TIMING



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