LPC47M112 SMSC Corporation, LPC47M112 Datasheet - Page 196

• Manufacturer Part Number: LPC47M112
• Description: ENHANCED SUPER I/O CONTROLLER WITH LPC INTERFACE
• Manufacturer: SMSC Corporation

Enhanced Super I/O Controller with LPC Interface
Datasheet
SMSC DS – LPC47M112
No te s:
1. Recei ve Pu lse Detection C ri te ria: A re ceived p ulse is consi dered d etecte d if the
2. IR RX:
n IRRX
IRRX
DATA
t1
t1
t1
t1
t1
t1
t1
t2
t2
t2
t2
t2
t2
t2
receive d p ulse is a mini mum o f 1.41µ s.
nIRRX: L5, CRF1 Bi t 0 = 0 (defaul t)
Pulse Width at 1 15kba ud
Pul se Wid th at 57.6kba ud
Pul se Wid th at 38.4kba ud
Pul se Wid th at 19.2kba ud
Pu lse Wi dth a t 9.6kba ud
Pu lse Wi dth a t 4.8kba ud
Pu lse Wi dth a t 2.4kba ud
Bit Time at 1 15kba ud
Bit Time at 57.6kba ud
Bit Time at 38.4kba ud
Bit Time at 19.2kba ud
Bi t Ti me a t 9.6kba ud
Bi t Ti me a t 4.8kba ud
Bi t Ti me a t 2.4kba ud
L5, CRF1 Bit 0 = 1
0
t2
t1
t2
1
Pa rame ter
FIGURE 25 - IRDA RECEIVE TIMING
t1
0
1
Page 196
0
0
min
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1
3.22
19.5
8.68
17.4
1 04
2 08
4 16
ty p
1.6
4.8
9.7
39
78
26
52
1
m ax
1 1.07
2 2.13
4 4.27
8 8.55
2.71
3.69
5.53
0
1
units
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
µs
1
Rev. 02/02/2005