W83977ATF Datasheet, PDF (156/207 Pages) Winbond – WINBOND I/O

W83977ATF
PRELIMINARY
CRE6 (Default 0x00)
Bit 7-6: Reserved.
Bit 5-0: CIR Baud Rate Dividor. The clock base of CIR is 32KHz, so that the baud rate is 32KHZ
divided by (CIR Baud Rate Divisor+1).
CRE7 (Default 0x00)
Bit 7-3: Reserved.
Bit 2: Reset CIR Power-On function. After used CIR power-on, the software should be write
logical 1 to restart CIR power-on function.
Bit 1: Invert RX Data, When set 1, invert received data.
Bit 0: Enable Demodulation. When set 1, enable received signal to demodulation. When set 0,
disable
CRF0 (Default 0x00)
Bit 7: CHIPPME. Chip level power management enable.
= 0 disable the ACPI/Legacy and the auto power management functions
= 1 enable the ACPI/Legacy and the auto power management functions.
Bit 6: IRPME. IR power management enable.
= 0 disable the auto power management function.
= 1 enable the auto power management function provided CRF0.bit7
(CHIPPME) is also set to 1.
Bit 5 - 4: Reserved. Return zero when read.
Bit 3: PRTPME. Printer port power management enable.
= 0 disable the auto power management functions.
= 1 enable the auto power management functions provided
CRF0.bit7 (CHIPPME) is also set to 1.
Bit 2: FDCPME. FDC power management enable.
= 0 disable the auto power management functions.
= 1 enable the auto power management functions provided
CRF0.bit7 (CHIPPME) is also set to 1.
Bit 1: URAPME. UART A power management enable.
= 0 disable the auto power management functions.
= 1 enable the auto power management functions provided
CRF0.bit7 (CHIPPME) is also set to 1.
Bit 0: URBPME. UART B power management enable.
= 0 disable the auto power management functions.
= 1 enable the auto power management functions provided
CRF0.bit7 (CHIPPME) is also set to 1.
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Publication Release Date:April 1998
Revision 0.52