IRCC SMSC Corporation, IRCC Datasheet - Page 16

• Manufacturer Part Number: IRCC
• Description: INFRARED COMMUNICATIONS CONTROLLER
• Manufacturer: SMSC Corporation

NOTES:
1.
2.
DATA
nIRTX
IRTX
Receive Pulse Detection Criteria: A received pulse is conidered detected if the received pulse is a
minimum of 1.41 µs
IRTX: CRC Bit 0: 1 = RCV active low
nIRTX: CRC Bit 0: 0 = RCV active high (default)
t1
t1
t1
t1
t1
t1
t1
t2
t2
t2
t2
t2
t2
t2
0
t1
t2
Pulse Width at 115kbaud
Pulse Width at 4.8kbaud
Pulse Width at 2.4kbaud
Pulse Width at 57.6kbaud
Pulse Width at 38.4kbaud
Pulse Width at 19.2kbaud
Pulse Width at 9.6kbaud
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
PARAMETER
t1
0
FIGURE 8 - IrDA TRANSMIT TIMING
1
0
16
0
MIN
1.41
1.41
1.41
1.41
1.41
1.41
1.41
1
TYP
3.22
19.5
8.68
17.4
104
208
416
1.6
4.8
9.7
39
78
26
52
1
22.13
11.07
44.27
88.55
MAX
2.71
3.69
5.53
0
UNITS
1
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
1