參數(shù)資料
型號: STA003
英文描述: MPEG 2.5 LAYER III AUDIO DECODER
中文描述: 2.5第三層的MPEG音頻解碼器
文件頁數(shù): 15/32頁
文件大?。?/td> 299K
代理商: STA003
ANCCOUNT_L
Address: 0x41
Type: RO
Software Reset: 0x00
Hardware Reset: 0x00
MSB
b7
AC7
LSB
b0
AC0
b6
AC6
b5
AC5
b4
AC4
b3
AC3
b2
AC2
b1
AC1
ANCCOUNT_H
Address: 0x42
Type: RO
Software Reset: 0x00
Hardware Reset: 0x00
ANCCOUNT_H
MSB
b7
AC15 AC14 AC13 AC12 AC11 AC10
LSB
b0
AC8
b6
b5
b4
b3
b2
b1
AC9
ANCCOUNT registers are logically concatenated
and indicate the number of Ancillary Data bits
available at every correctly decoded MPEG
frame.
HEAD_H[23:16]
MSB
b7
X
LSB
b0
H16
b6
X
b5
X
b4
H20
b3
H19
b2
H18
b1
H17
x = don’t care
HEAD_M[15:8]
MSB
b7
H15
LSB
b0
H8
b6
H14
b5
H13
b4
H12
b3
H1‘1
b2
H10
b1
H9
HEAD_L[7:0]
MSB
b7
H7
LSB
b0
H0
b6
H6
b5
H5
b4
H4
b3
H3
b2
H2
b1
H1
Address: 0x43, 0x44, 0x45
Type: RO
Software Reset: 0x00
Hardware Reset: 0x00
Head[1:0] emphasis
Head[2] original/copy
Head[3] copyrightHead
[5:4] mode extension
Head[7:6] mode
Head[8] private bit
Head[9] padding bit
Head[11:10] sampling frequency index
Head[15:12] bitrate index
Head[16] protection bit
Head[18:17] layer
Head[19] ID
Head[20] ID_ex
The HEAD registers can be viewed as logically
concatenated to store the MPEG Layer III Header
content. The set of three registers is updated
every time the synchronisation to the new MPEG
frame is achieved .
STA003T
15/32
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