FDC37M81x SMSC Corporation, FDC37M81x Datasheet - Page 196
FDC37M81x
Manufacturer Part Number
FDC37M81x
Description
PC98/99 Compliant Enhanced Super I/O Controller
Manufacturer
SMSC Corporation
Datasheet
1.FDC37M81X.pdf
(198 pages)
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nMIRTX
MIRTX
DATA
IRTX
n IRTX
Notes:
1. IRTX:
t1
t2
t3
t4
t5
t6
nIRTX: L5, CRF1 Bit 1: 0 = XMIT active high
MIRTX, nMIRTX are the modulated outputs
FIGURE 24 - AMPLITUDE SHIFT KEYED IR TRANSMIT TIMING
Modulated Output Bit Time
Off Bit Time
Modulated Output "On"
Modulated Output "Off"
Modulated Output "On"
Modulated Output "Off"
0
t1
L5, CRF1 Bit 1: 1 = XMIT active low (default)
t3
t5
1
t2
t4
t6
Parameter
0
1
0
196
0
min
0.8
0.8
0.8
0.8
1
typ
1
1
1
1
1
max
1.2
1.2
1.2
1.2
0
1
units
µs
µs
µs
µs
µs
µs
1
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