w83977eg Winbond Electronics Corp America, w83977eg Datasheet - Page 98

• Manufacturer Part Number: w83977eg
• Description: Winbond Isa I/o W83977ef W83977eg
• Manufacturer: Winbond Electronics Corp America

CRF0 (Default 0x00)
CRF1 (Default 0x00)
Note: The notation is normal mode in the IR function.
00X
010*
011*
100
101
110
111*
IR MODE
Bit 7 - 4: Reserved.
Bit 3: RXW4C
Bit 2: TXW4C
Bit 1 - 0: SUBCLKB1, SUBCLKB0
Bit 7: Reserved.
Bit 6: IRLOCSEL. IR I/O pins' location select.
Bit 5: IRMODE2. IR function mode selection bit 2.
Bit 4: IRMODE1. IR function mode selection bit 1.
Bit 3: IRMODE0. IR function mode selection bit 0.
Bit 2: HDUPLX. IR half/full duplex function select.
= 0
= 1
= 0
= 1
= 00
= 01
= 10
= 11
= 0
= 1
= 0
= 1
Disable
IrDA
IrDA
ASK-IR
ASK-IR
ASK-IR
ASK-IR
IR FUNCTION
No reception delay when SIR is changed from TX mode to RX mode.
Reception delays 4 characters-time (40 bit-time) when SIR is changed from TX mode
to RX mode.
No transmission delay when SIR is changed from RX mode to TX mode.
Transmission delays 4 characters-time (40 bit-time) when SIR is changed from RX
Through SINB/SOUTB.
Through IRRX/IRTX.
The IR function is Full Duplex.
The IR function is Half Duplex.
UART B clock source is 1.8462 Mhz (24MHz/13)
UART B clock source is 2 Mhz (24MHz/12)
UART B clock source is 24 Mhz (24MHz/1)
UART B clock source is 14.769 Mhz (24MHz/1.625)
mode to TX mode.
tri-state
Active pulse 1.6 μ S
Active pulse 3/16 bit time
Inverting IRTX/SOUTB pin
Inverting IRTX/SOUTB & 500
KHZ clock
Inverting IRTX/SOUTB
Inverting IRTX/SOUTB & 500
KHZ clock
W83977EF-AW/W83977EG-AW
IRTX
-96-
Demodulation into SINB/IRRX
high
Demodulation into SINB/IRRX
routed to SINB/IRRX
routed to SINB/IRRX
Demodulation into SINB/IRRX
Demodulation into SINB/IRRX
IRRX