IRCC SMSC Corporation, IRCC Datasheet - Page 62

• Manufacturer Part Number: IRCC
• Description: INFRARED COMMUNICATIONS CONTROLLER
• Manufacturer: SMSC Corporation

Receive Timing
The SCE TV Remote receiver can be enabled
with the configuration register SCE Modes bits,
polled using programmed I/O, and manually
Figure 32 illustrates how the TV Remote receiver
operates using DMA. TC disables the
Active Frame Int.
Active Frame Int.
Tx Reg. Empty
EOM Interrupt
EOM Interrupt
Active Frame
Active Frame
FIFO Empty
Active Frame
Tx Enable
Rx Enable
Rx Enable
TC
Zero Detect
FIGURE 31 - TV REMOTE MANUAL RX TIMING
FIGURE 30 - TV REMOTE TRANSMIT TIMING
Zero Detect
FIGURE 32 - TV REMOTE DMA RX TIMING
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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.
receiver, sends an EOM Interrupt, and resets the
SCE Modes bits to zero.
Clear FIFO