FDC37B78X SMSC Corporation, FDC37B78X Datasheet - Page 256
FDC37B78X
Manufacturer Part Number
FDC37B78X
Description
Enhanced Super I/O Controller with ACPI Support/ Real Time Clock and Consumer IR
Manufacturer
SMSC Corporation
Datasheet
1.FDC37B78X.pdf
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ASK IR Transmit
nMIRTX
MIRTX
DATA
IRTX
n IRTX
0
t1
Notes:
1. IRTX: L5, CRF1 Bit 1 = 1 (default)
nIRTX: L5, CRF1 Bit 1 = 0
MIRTX, nMIRTX are the modulated outputs
t1
t2
t3
t4
t5
t6
t3
t5
1
t2
Modulated Output Bit Time
Off Bit Time
Modulated Output "On"
Modulated Output "Off"
Modulated Output "On"
Modulated Output "Off"
t4
t6
FIGURE 33 - ASK IR TRANSMIT TIMING
0
Parameter
1
0
257
min
0.8
0.8
0.8
0.8
0
typ
1
1
1
1
1
max
1
1.2
1.2
1.2
1.2
0
units
µ s
µ s
µ s
µ s
µ s
µ s
1
1
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