FDC37C669_07 SMSC [SMSC Corporation], FDC37C669_07 Datasheet - Page 147

• Manufacturer Part Number: FDC37C669_07
• Description: PC 98/99 Compliant Super I/O Floppy Disk Controller with Infrared Support
• Manufacturer: SMSC [SMSC Corporation]

DATA
n IRRX
IRRX
Notes:
1. Re ceive Pulse D etection Cri te ria: A recei ve d pulse i s co nsidered detected i f the
2. IRTX: CRC Bit 0: 1 = RCV active lo w
t1
t1
t1
t1
t1
t1
t1
t2
t2
t2
t2
t2
t2
t2
recei ve d pulse i s a minimum of 1 .4 1µs.
nIRTX: CRC Bit 0: 0 = RCV active hi gh
Pul se Wid th a t 115 kbau d
Pulse Width at 57 .6 kbau d
Pulse Width at 38 .4 kbau d
Pulse Width at 19 .2 kbau d
Pulse Width at 9.6 kbau d
Pulse Width at 4.8 kbau d
Pulse Width at 2.4 kbau d
Bit Time at 115kbaud
Bit Time at 5 7.6kbaud
Bit Time at 3 8.4kbaud
Bit Time at 1 9.2kbaud
Bi t Time at 9.6kbau d
Bi t Time at 4.8kbau d
Bi t Time at 2.4kbau d
0
t1
t2
1
t2
Parameter
FIGURE 10 - IrDA RECEIVE TIMING
t1
0
1
0
147
0
min
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1
3 .2 2
1 9.5
8 .6 8
1 7.4
10 4
20 8
41 6
1
typ
1.6
4.8
9.7
3 9
7 8
2 6
5 2
0
max
11 .0 7
22 .1 3
44 .2 7
88 .5 5
2 .7 1
3 .6 9
5 .5 3
1
units
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
1