參數(shù)資料
型號: SAA2003
廠商: NXP Semiconductors N.V.
元件分類: Codec
英文描述: Stereo filter and codec
中文描述: 過濾器和立體聲編解碼器
文件頁數(shù): 11/44頁
文件大?。?/td> 176K
代理商: SAA2003
May 1994
19
Philips Semiconductors
Preliminary specication
Stereo lter and codec
SAA2003
Table 15 Interface modes.
Table 16 Register address settings.
Note
1. These registers are write only, accessed using the protocol shown in Fig.13.
Operation in LT mode
LT interface mode can be selected by writing an extended settings word to the interface mode control register as shown
in Table 17.
Table 17 Interface mode control register.
In LT mode the LTCNT0 and LTCNT1 pins are used, and the L3MODE pin becomes LTEN enable line. L3CLK becomes
LTCLK, and L3DATA becomes LTDATA.
D0/LTCNT0
D1/LTCNT1
MODE
0
extended setting from microcontroller to SAA2003
1
0
allocation and scale factor information from SAA2013 to SAA2003
0
1
codec internal settings from microcontroller to SAA2003
1
codec status from SAA2003 to microcontroller and SAA2013 including peak
level data
A3
A2
A1
A0
REGISTER(1)
0000
codec external settings
0001
codec interface mode control
0010
serial audio interface mode control
0011
fade counter rate control
0100
fade counter control
A3
A2
A1
A0
D3
D2
D1
D0
MODE
0
1
X
1
X
L3 mode (default)
0
1
X
0
X
LT mode
andbook, full pagewidth
MBD626
L3MODE
L3CLK
L3DATA
D0
D1
D2
D3
A0
A1
A2
A3
Fig.13 Extended settings protocol.
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