DATA
0
1
0
1
0
0
1
1
0
1
1
t2
t1
t2
t1
IRRX
n IRRX
Parameter
min
typ
max
units
t1 Pulse Width at115kbaud
t1 Pulse Width at 57.6kbaud
t1 Pulse Width at 38.4kbaud
t1 Pulse Width at 19.2kbaud
t1 Pulse Widthat 9.6kbaud
t1 Pulse Widthat 4.8kbaud
t1 Pulse Widthat 2.4kbaud
t2 Bit Time at115kbaud
t2 Bit Time at 57.6kbaud
t2 Bit Time at 38.4kbaud
t2 Bit Time at 19.2kbaud
t2 Bit Timeat 9.6kbaud
t2 Bit Timeat 4.8kbaud
t2 Bit Timeat 2.4kbaud
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.6
3.22
4.8
9.7
19.5
39
2.71
3.69
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
5.53
11.07
22.13
44.27
88.55
78
8.68
17.4
26
52
104
208
416
Notes:
1. Receive Pulse Detection Criteria: A received pulse is considered detected if the
receivedpulse is a minimumof 1.41µs.
2. IRRX: L5, CRF1 Bit 0 = 1
nIRRX: L5, CRF1 Bit 0 = 0 (default)
FIGURE 19 - IrDA RECEIVE TIMING
190
SMSC [ SMSC CORPORATION ]
