w83877atd Winbond Electronics Corp America, w83877atd Datasheet - Page 120

• Manufacturer Part Number: w83877atd
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

Note: The notation is normal mode in the IR function.
The SIR schematic diagram for registers CRC and CRD is shown below.
8.2.15 Configuration Register E (CR0E), Configuration Register F (CR0F)
00X
010*
011*
100
101
110
111*
IR MODE
16550A
UART2
Reserved for testing. Should be kept all 0's.
SOUT
SIN
(CRC.bit1)
Disable
IrDA
IrDA
ASK-IR
ASK-IR
ASK-IR
ASK-IR
IR FUNCTION
RX2INV
Transmission
Time Frame
(CRC.bit3)
MUX
URIRSEL
IRDA Mod.
IRDA Mod.
Mod1.6u
3/16
500KHZ
1
0
IRMODE2,1=00
IRMODE0
(CRD.bit0)
(CRD.bit0)
IRMODE0
1
0 MUX
0 MUX
1
tri-state
Active pulse 1.6 S
Active pulse 3/16 bit time
Inverting IRTX pin
Inverting IRTX & 500 KHZ clock
Inverting IRTX
Inverting IRTX & 500 KHZ clock
IRMODE2
(CRD.bit2)
MUX
1
0
IRDA
(CRD.bit3)
HUPLX
(CRD.bit1)
IRMODE1
0
1 MUX
(CRD.bit2)
IRMODE2
IRTX
MUX 0
- 116 -
1
Demodulation
Demodulation
IR-DA
ASK_IR
(CRC,bit3)
0
1 MUX
URIRSEL
TX2INV
CRC.bit0
Publication Release Date: April 1998
high
Demodulation into SINB
Demodulation into SINB
routed to SINB
routed to SINB
Demodulation into SINB
Demodulation into SINB
CR0D.bit5,4
SIRRX1~0
MUX
01
00
10
11
CRD.bit7,6
SIRTX1~0
MUX
11,00
10
01
IRRX1
IRRX2
W83877ATF
IRRX
disable
IRTX1
IRTX2
SIN2
+5V
NCS0
+5V
SOUT2
NCS1
(default)
Version 0.51
(default)