at85c51snd3b ATMEL Corporation, at85c51snd3b Datasheet - Page 159

• Manufacturer Part Number: at85c51snd3b
• Description: Single-chip Digital Audio Decoder - Encoder With Usb 2.0 Interface
• Manufacturer: ATMEL Corporation

7632C–MP3–11/06
Reset Value = 0000 0000b
Table 166. APCON0 Register
APCON0 (1.F2h) – Audio Processor Control Register 0
Reset Value = 0000 0000b
Table 167. APCON1 Register
APCON1 (1.F3h) – Audio Processor Control Register 1
Number
Number
Number
2-1
6-0
7-5
Bit
Bit
Bit
0
7
0
7
7
5
4
3
2
-
Mnemonic Description
APCMD6:0
Mnemonic Description
Mnemonic Description
ACCKEN
APCMD6
ABSPLIT
ABWPR
ABACC
ABRPR
Bit
Bit
Bit
6
0
6
-
-
-
Reserved
The value read from these bits is always 0. Do not set these bits.
Audio Controller Clock Enable Bit
Set to enable the Audio Controller Clock.
Clear to disable the Audio Controller Clock.
Always 0
The value read from this bit is always 0. Can not be set by software.
Audio Processor Operating Command Bits
Codec firmware dependant.
Reserved
The value read from these bits is always 0. Do not set these bits.
Audio Buffer Access Bit
Set to enable buffer access by C51 core.
Clear to enable buffer access by DFC.
Audio Buffer Write Pointer Reset Bit
Set to reset the audio buffer write pointer.
Cleared by hardware when write pointer is reset.
Can not be cleared by software.
Audio Buffer Read Pointer Reset Bit
Set to reset the audio buffer read pointer.
Cleared by hardware when read pointer is reset.
Can not be cleared by software.
Audio Buffer Split Bit
Set to configure the audio buffer as a double buffer.
Clear to configure the audio buffer as a single buffer.
APCMD5
ABACC
5
5
APCMD4
ABWPR
4
4
APCMD3
ABRPR
3
3
AT85C51SND3B
APCMD2
ABSPLIT
2
2
APCMD1
APLOAD
1
1
APCMD0
DAPEN
0
0
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