Samsung S5PC100 User Manual page 687

IRDA
Figure 8.4-6 shows the MIR demodulation state machine. Basically, it has similar structure with FIR demodulation
state machine. Instead of having 4 PPM demodulation phase, it has the stage of removing stuffed bits from
payload data stream. Since the MIR data stream does not have preamble data, the preamble/ start flag data
detection stage in MIR demodulation is simplified to start flag detection state.
8.4-8
Rx
Enable
0
ena & flagbyte
Str Flag
Detect
1
str_end
Pay Load
Detect
& De-Stuff
2
pay_end
CRC check
& Stp Det
3
stp_end
Figure 8.4-6 MIR Demodulation Process
S5PC100 USER'S MANUAL (REV1.0)
~(ena&flagbyte)