W83877ATG Nuvoton Technology Corporation of America, W83877ATG Datasheet - Page 123

• Manufacturer Part Number: W83877ATG
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83877ATG

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Note : The notation is normal mode in the IR function.
The SIR schematic diagram for registers CRC and CRD is shown below.
11.2.15
Reserved for testing. Should be kept all 0's.
00X
010*
011*
100
101
110
111*
IR MODE
16550A
UART2
SOUT
SIN
Configuration Register E (CR0E), Configuration Register F (CR0F)
(CRC.bit1)
IrDA
IrDA
ASK-IR
ASK-IR
ASK-IR
ASK-IR
Disable
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 μ S
Active pulse 3/16 bit time
Inverting IRTX pin
Inverting IRTX & 500 KHZ clock
Inverting IRTX
Inverting IRTX & 500 KHZ clock
(CRD.bit2)
IRMODE2
MUX
1
0
IRDA
(CRD.bit3)
HUPLX
IRMODE1
(CRD.bit1)
1 MUX
0
(CRD.bit2)
IRMODE2
MUX 0
IRTX
- 116 -
1
Demodulation
Demodulation
IR-DA
ASK_IR
W83877ATF/W83877ATG
(CRC,bit3)
0
1 MUX
URIRSEL
TX2INV
CRC.bit0
Demodulation into SINB
high
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
01
10
IRRX2
IRRX1
IRRX
disable
IRTX1
IRTX2
SIN2
+5V
NCS0
+5V
SOUT2
NCS1
(default)
(default)