LPC47M140-NC SMSC [SMSC Corporation], LPC47M140-NC Datasheet - Page 196

• Manufacturer Part Number: LPC47M140-NC
• Description: 128 PIN ENGANCED SUPER I/O CONTROLLER WITH AN LPC INTERFACE AND USB HUB
• Manufacturer: SMSC [SMSC Corporation]

SMSC DS – LPC47M14X
n MIRT X
MIRTX
DATA
IRT X
n IRT X
0
t1
Note s:
1 . IRT X :
FIGURE 38 – AMPLITUDE SHIFT KEYED IR TRANSMIT TIMING
nI RTX: L 5, CRF1 Bit 1 = 0
MIRTX, nM IRTX a re the mod ulate d ou tpu ts
t1
t2
t3
t4
t5
t6
t3
t5
1
t2
L5 , CRF 1 Bit 1 = 1 (def ault)
M odu lated Out put Bit Time
Off Bit Time
M odu lated Outp ut " On"
M odu lated Outp ut " Off"
M odu lated Outp ut " On"
M odu lated Outp ut " Off"
t4
t6
0
Pa ramet er
1
Page 196
0
min
0.8
0.8
0.8
0.8
0
t yp
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
Rev. 03/19/2001