FDC37B770 SMSC [SMSC Corporation], FDC37B770 Datasheet - Page 191

• Manufacturer Part Number: FDC37B770
• Description: ENHANCED SUPER I/O CONTROLLER WITH WAKE UP FEATURES
• Manufacturer: SMSC [SMSC Corporation]

n IRT X
DAT A
IRT X
0
t1
Notes:
1. I rDA @ 115k is HPSIR compatible. IrDA @ 2400 will allow compatibility with HP95LX
2. IRT X:
t2
t1
t1
t1
t1
t1
t1
t1
t2
t2
t2
t2
t2
t2
t2
nIRT X: L5, CRF1 Bit 1 = 0
and 48SX.
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
Bit Time at 4.8kbaud
Bit Time at 2.4kbaud
1
t2
L5, CRF 1 Bit 1 = 1 (default)
FIGURE 20 - IrDA TRANSMIT TIMING
t1
0
Parameter
1
191
0
mi n
1.41
1.41
1.41
1.41
1.41
1.41
1.41
0
3.22
19.5
8.68
17.4
104
208
416
typ
1.6
4.8
9.7
39
78
26
52
1
max
11.07
22.13
44.27
88.55
2.71
3.69
5.53
1
0
u nits
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
1
1