lpc47s457-ns Standard Microsystems Corp., lpc47s457-ns Datasheet - Page 243

• Manufacturer Part Number: lpc47s457-ns
• Description: Advanced I/o With X-bus Interface
• Manufacturer: Standard Microsystems Corp.

SMSC LPC47S45x
n IRT X
DAT A
IRT X
0
t1
Notes:
1. IrDA @ 115k i s HPSIR com pati ble. IrDA @ 2400 wi ll al low compat ibilit y with HP95LX
2. IRT X:
t2
t1
t1
t1
t1
t1
t1
t1
t2
t2
t2
t2
t2
t2
t2
nI RT X: L5, CRF1 Bit 1 = 0
and 48SX.
Pulse Width at 115kbaud
Pulse Widt h at 57. 6kbaud
Pulse Widt h at 38. 4kbaud
Pulse Widt h at 19. 2kbaud
Pulse Widt h at 9. 6kbaud
Pulse Widt h at 4. 8kbaud
Pulse Widt h at 2. 4kbaud
Bit T ime at 115kbaud
Bit Tim e at 57. 6kbaud
Bit Tim e at 38. 4kbaud
Bit Tim e at 19. 2kbaud
Bit Tim e at 9. 6kbaud
Bit Tim e at 4. 8kbaud
Bit Tim e at 2. 4kbaud
1
t2
FIGURE 34 − IRDA TRANSMIT TIMING
L5, CRF 1 Bit 1 = 1 (default)
DATASHEET
t1
0
Parameter
Page 243 of 259
1
0
mi n
1.41
1.41
1.41
1.41
1.41
1.41
1.41
0
3.22
19.5
8.68
17.4
104
208
416
typ
1.6
4.8
9.7
39
78
26
52
1
max
11.07
22.13
44.27
88.55
2.71
3.69
5.53
1
0
u nits
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
µ s
1
Rev. 08-10-09
1