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W83977EF-AW Datasheet(PDF) 98 Page - Winbond |
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W83977EF-AW Datasheet(HTML) 98 Page - Winbond |
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98 / 142 page  W83977EF-AW/W83977EG-AW -96- CRF0 (Default 0x00) Bit 7 - 4: Reserved. Bit 3: RXW4C = 0 No reception delay when SIR is changed from TX mode to RX mode. = 1 Reception delays 4 characters-time (40 bit-time) when SIR is changed from TX mode to RX mode. Bit 2: TXW4C = 0 No transmission delay when SIR is changed from RX mode to TX mode. = 1 Transmission delays 4 characters-time (40 bit-time) when SIR is changed from RX mode to TX mode. Bit 1 - 0: SUBCLKB1, SUBCLKB0 = 00 UART B clock source is 1.8462 Mhz (24MHz/13) = 01 UART B clock source is 2 Mhz (24MHz/12) = 10 UART B clock source is 24 Mhz (24MHz/1) = 11 UART B clock source is 14.769 Mhz (24MHz/1.625) CRF1 (Default 0x00) Bit 7: Reserved. Bit 6: IRLOCSEL. IR I/O pins' location select. = 0 Through SINB/SOUTB. = 1 Through IRRX/IRTX. 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. IR MODE IR FUNCTION IRTX IRRX 00X Disable tri-state high 010* IrDA Active pulse 1.6 μS Demodulation into SINB/IRRX 011* IrDA Active pulse 3/16 bit time Demodulation into SINB/IRRX 100 ASK-IR Inverting IRTX/SOUTB pin routed to SINB/IRRX 101 ASK-IR Inverting IRTX/SOUTB & 500 KHZ clock routed to SINB/IRRX 110 ASK-IR Inverting IRTX/SOUTB Demodulation into SINB/IRRX 111* ASK-IR Inverting IRTX/SOUTB & 500 KHZ clock Demodulation into SINB/IRRX Note: The notation is normal mode in the IR function. Bit 2: HDUPLX. IR half/full duplex function select. = 0 The IR function is Full Duplex. = 1 The IR function is Half Duplex. |
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