AK4543 Datasheet, PDF (14/31 Pages) Asahi Kasei Microsystems – AC’97 Rev 2.1 Multimedia Audio CODEC

[ASAHI KASEI]
[AK4543]
d)Slot3 PCM Playback Left Channel (18bits)
In the case of codec ID1:codec ID0=0:0 or 0:1, the AK4543 uses the playback(DAC) data format in slot3 for left
channel.
Playback data format is 18bits MSB first 2’s complement. The AC’97 controller should stuff bit s1-0 with “0”. If
valid bit (slot3) in the slot 0 is invalid (“0”), the AK4543 interprets the data as all “0”.
Bit19:2
Playback data
Bit 1:0
“0”
e)Slot4 PCM Playback Right Channel (18bits)
In the case of codec ID1:codec ID0=0:0 or 0:1, the AK4543 uses the playback(DAC) data format in the slot4 for right
channel. Playback data format is MSB first. Data format is 18bits 2’s complement. The AC’97 controller should
stuff bits1-0 with “0”. If valid bit (slot 4) in the slot 0 is invalid ( “0”), the AK4543 interprets the data as all “0”.
Bit19:2
Playback data
Bit 1:0
“0”
f)Slot5 is Not used in the AK4543
The AK4543 will ignore stuffed in this slot.
g)Slot6 PCM Playback Left Channel (18bits)
In case of codec ID1:codec ID0=1:1, the AK4543 uses the playback(DAC) data in slot 6 for left channel.
Playback data format is 18bits MSB first 2’s complement. The AC’97 controller should stuff bit1-0 with “0”. If valid
bit (slot6) in the slot 0 is invalid ( “0”), the AK4543 interprets the data as all “0”.
Bit19:2
Playback data
Bit 1:0
“0”
h)Slot7 PCM Playback Left Channel (18bits)
In case of codec ID1:codec ID0=1:0, the AK4543 uses the playback(DAC) data in slot7 for left channel.
Playback data format is 18bits MSB first 2’s complement. The AC’97 controller should stuff bit1-0 with “0”. If valid
bit (slot7) in the slot 0 is invalid ( “0”), the AK4543 interprets the data as all “0”.
Bit19:2
Playback data
Bit 1:0
“0”
i)Slot8 PCM Playback Right Channel (18bits)
In case of codec ID1:codec ID0=1:0, the AK4543 uses the playback(DAC) data in slot8 for right channel.
Playback data format is 18bits MSB first 2’s complement. The AC’97 controller should stuff bit1-0 with “0”. If valid
bit (slot8) in the slot 0 is invalid ( “0”), the AK4543 interprets the data as all “0”.
Bit19:2
Playback data
Bit 1:0
“0”
j)Slot9 PCM Playback Right Channel (18bits)
In case of codec ID1:codec ID0=1:1, the AK4543 uses the playback(DAC) data in slot 9 for right channel.
Playback data format is 18bits MSB first 2’s complement. The AC’97 controller should stuff bit1-0 with “0”. If valid
bit (slot9) in the slot 0 is invalid ( “0”), the AK4543 interprets the data as all “0”.
Bit19:2
Playback data
Bit 1:0
“0”
k)Slot10-12 is Not used in the AK4543
The AK4543 will ignore stuffed in these data slots.
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1999/01