CS4205 Datasheet, PDF (51/80 Pages) Cirrus Logic – CrystalClear Audio Codec 97 with Portable Computing

CS4205
5.37 BIOS-Driver Interface Status Register (Index 7Ah)
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
E15 E14 E13 E12 E11 E10 E9 E8 E7 E6 E5 E4 E3 E2 E1 E0
E[15:0]
Event Status. This register, in conjunction with the BIOS-Driver Interface Control Registers
(Index 6Eh, Address 0Ch - 0Dh), controls the BIOS-Driver Interface mechanism.
Default
0000h
The BDI Status Register (Index 7Ah) reflects the state of all possible events. If a bit is ‘0’, the corresponding event
has not occurred or has already been handled by the driver. If a bit is ‘1’, the corresponding event has occurred and
has not been handled by the driver yet. The BDI bit in input slot 12 is a logic OR of all bits in this register ANDed
with their corresponding bit in the BDI Config Register (Index 6Eh, Address 0Ch). After handling an event, the driver
should clear it by writing a ‘0’ to the corresponding bit of this register.
DS489PP2
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