8-Bit Data Reception; Reception Of 8-Bit Data With No Leader; Reception Of 8-Bit Data With Leader; Panasonic - Panasonic MN10285K User Manual

IR Remote Signal Receiver
IR Remote Signal Receiver Operation
MN102H75K/F75K/85K/F85K LSI User Manual
8.3.3

8-Bit Data Reception

Resetting the 8-bit data reception counter allows the microcontroller to receive 8-
bit data, either with or without a leader. The software can reset the counter using the
BCRSTE and BCEDGS bits of the interrupt status register, RMIS. The counter can
also be reset by an external reset or a hardware reset at leader detection.
Set BCRSTE to enable resets to the 8-bit data reception counter. When the
BCEDGS bit is 0, the counter resets at the first remote signal edge after each trailer
detection. This mode is for data containing no leader. (See figure 8-3.)
8-bit data
Remote
signal input
Edge
detection
8-bit data reception detection
8-bit data
reception
5 6
counter
Figure 8-3 Reception of 8-Bit Data with No Leader
When BCEDGS is 1, the counter resets at the second remote signal edge after
each trailer detection. By ignoring the leader, this mode allows the microcon-
troller to receive 8-bit data that contains a leader. (See figure 8-4.)
8-bit data
Remote
signal input
Edge
detection
8-bit data reception detection
8-bit data
reception 5 6
counter
Figure 8-4 Reception of 8-Bit Data with Leader
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Trailer
Trailer detection
7 0
Counter reset
Trailer
Trailer detection
7 0
Panasonic Semiconductor Development Company
8-bit data
0 1 2
8-bit data
Ignored
Leader detection
1 0 1
Counter reset