ak4651 AKM Semiconductor, Inc., ak4651 Datasheet - Page 51

• Manufacturer Part Number: ak4651
• Description: 16bit ?? Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
[Slot 2]: Status Data Port
Status data addressed by command address port of Output Stream is output through SDATAIN pin.
Note that the address of Status Data Port data are consistent with Status Address Port data of the slot 1 in the same
frame. If the read operation is issued in the frame N by AC’97 controller, Status Data Port data is output through
SDATAIN in the frame N+1. Note that data is output in only this frame, only one time and that the
following frames are invalid if the next read operation is not issued.
[Slot 3]: PCM Record Left Channel
Record (ADC) data format is MSB first. Data format is 2’s complement. As the resolution of the AK4651 is 16bit, lower
4 bits are ignored. If ADC block is powered down, slot 3 valid bit in the slot 0 is invalid (“0”), and data is output as all “0”.
[Slot 4-11]: Reserved for future enhancement
[Slot 12]: Headphone jack detection results
When SLOT bit = “1”, headphone jack detection results are output.
MS0503-E-00
Bit 19-4
Bit 3-0
Bit 19-2:
Bit 1:
Bit 0:
Bit 19-4: Audio ADC left channel output (16bit)
Bit 3-0:
Bit 19-0
Control Register Read Data (16bit; the contents of indexed address in the slot 1)
“0” (4bit)
“0” (4bit)
“0”
“0” (18bit)
DTHPJ (1bit; “0”=Not inserted, “1”=Inserted)
“0” (1bit)
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[AK4651]
2006/04