DATA
IRTX
1
0
1
0
0
1
1
1
1
0
0
t2
t1
t2
t1
n IRTX
min
Parameter
typ
max
units
1.41
1.41
1.41
1.41
1.41
1.41
1.41
t1
Pulse Width at 115kbaud
Pulse Width at 57.6kbaud
Pulse Width at 38.4kbaud
Pulse Width at 19.2kbaud
Pulse Width at 9.6kbaud
Pulse Width at 4.8kbaud
Pulse Width at 2.4kbaud
Bit Time at 115kbaud
Bit Time at 57.6kbaud
Bit Time at 38.4kbaud
Bit Time at 19.2kbaud
Bit Time at 9.6kbaud
1.6
3.22
4.8
2.71
3.69
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
t1
t1
t1
t1
t1
t1
t2
t2
t2
t2
t2
t2
t2
5.53
9.7
11.07
22.13
44.27
88.55
19.5
39
78
8.68
17.4
26
52
104
208
416
Bit Time at 4.8kbaud
Bit Time at 2.4kbaud
Notes:
1. IrDA @ 115k is HPSIR compatible.
and 48SX.
IrDA @ 2400 will allow compatibility with HP95LX
2. IRTX: L5, CRF1 Bit 1 = 1 (default)
nIRTX: L5, CRF1 Bit 1 = 0
FIGURE 20 - IrDA TRANSMIT TIMING
191
SMSC [ SMSC CORPORATION ]
