GM82C803CN Datasheet, PDF (75/84 Pages) List of Unclassifed Manufacturers – 2.88 MB FDC/ Dual UARTs with FIFO/PIO(EPP/ ECP)/ IDE Interface/ S-IR/ PnP

GM82C803CN
5-3.6 ASKIR
DATA
IRRX
IRRX
MIRRX
MIRRX
0 1 0 1 00
t1 t2
11
011
t3 t4
t5 t6
Parameter
t1 Modulated Output Bit Time
t2 Off Bit Time
t3 Modulated Output "On"
t4 Modulated Output "Off"
t5 Modulated Output "On"
t6 Modulated Output "On"
Min
Typ
Max
Units
us
us
0.8
1
1.2
us
0.8
1
1.2
us
0.8
1
1.2
us
0.8
1
1.2
us
Notes :
1. IRRX : CRC Bit 0 : 1= RCV active iow
IRRX : CRC Bit 0 : 0 = RCV active high (default )
MIRRX, MIRRX are the modulated outputs
FIGURE 1 - AMPLITUDE SHIFT KEYED IR RECEIVE TIMING