W83877 Winbond Electronics Corp America, W83877 Datasheet - Page 86

• Manufacturer Part Number: W83877
• Description: Winbond I/O
• Manufacturer: Winbond Electronics Corp America

SIRRX1 (bit 5): IRRX pin selection bit 1
SIRRX0 (bit 4): IRRX pin selection bit 0
HDUPLX (bit 3):
IRMODE2 (bit 2): IR function mode selection bit 2
IRMODE1 (bit 1): IR function mode selection bit 1
IRMODE0 (bit 0): IR function mode selection bit 0
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
SIRRX1
SIRTX1
Reserved for testing. Should be kept all 0's.
0
1
0
0
1
1
0
0
1
1
IR FUNCTION
Disable
IrDA
IrDA
ASK-IR
ASK-IR
ASK-IR
ASK-IR
The IR function is Full Duplex.
The IR function is Half Duplex.
SIRRX0
SIRTX0
0
1
0
1
0
1
0
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
disabled
IRTX1 (pin 43)
IRTX2 (pin 95)
disabled
disabled
IRRX1 (pin 42)
IRRX2 (pin 94)
disabled
IRTX output on pin
IRRX input on pin
IRTX
- 86 -
high
Demodulation into SINB
Demodulation into SINB
routed to SINB
routed to SINB
Demodulation into SINB
Demodulation into SINB
IRRX
W83877F