參數(shù)資料
型號(hào)： SAA7327
廠商： NXP Semiconductors N.V.
英文描述： Digital servo processor and Compact Disc decoder with integrated DAC for video CD (CD7 II)(應(yīng)用于視頻CD的帶綜合數(shù)模轉(zhuǎn)換器（DAC）的數(shù)字伺服處理器和光盤譯碼器)
中文描述： 數(shù)字伺服處理器和光盤解碼器集成了用于視頻光盤（CD7抗原二）（應(yīng)用于視頻光碟的帶綜合數(shù)模轉(zhuǎn)換器（DAC）的的數(shù)字伺服處理器和光盤譯碼器援會(huì)）
文件頁(yè)數(shù)： 39/68頁(yè)
文件大?。?/td> 284K
代理商： SAA7327
2000 Jun 26
39
Philips Semiconductors
Product specification
Digital servo processor and Compact Disc
decoder with integrated DAC for video CD (CD7 II)
SAA7327
7.15.3
D
ECODER REGISTERS AND SHADOW REGISTERS
To maintain compatibility with the SAA737x series,
decoder registers 0 to F are identical to the SAA7370.
However, to control the extra functionality of SAA7327, a
new set of registers called shadow registers have been
implemented.
These are accessed by using the LSB of decoder
register F. This bit is called SHADEN (shadow registers
enable) on SAA7327. When this bit is set to logic 1 (i.e.
decoder register F set to XXX1), any subsequent
addresses will be decoded by the shadow registers.
In fact, only four addresses are implemented as shadow
registers; 3, 7, A and C. Any other addresses sent while
SHADEN = 1 are invalid and have no effect.
When SHADEN is set to logic 0 (decoder register F set to
XXX0) all subsequent addresses are decoded by the main
decoder registers again.
Access to decoder register F is always enabled so that
SHADEN can be set or reset as required.
The SHADEN bit and subsequent shadow registers are
programmed identically to the main decoder registers, i.e.
they can be directly programmed when using SAA7327 in
4-wire mode or programmed via the servo interface when
using 3-wire or I
2
C-bus modes.
The main decoder registers are shown in Table 14. The
functions implemented using shadow registers are shown
in Table 16.
7.15.4
S
UMMARY OF FUNCTIONS CONTROLLED BY DECODER REGISTERS
0
TO
F
Table 14
Registers 0 to F
REGISTER
ADDRESS
DATA
FUNCTION
INITIAL
(1)
0
(fade and
attenuation)
0000
0000
0010
0001
0100
0101
X000
X001
X010
X011
X100
X101
X111
X110
1XXX
0XXX
mute
attenuate
full-scale
step down
step up
motor off mode
motor stop mode 1
motor stop mode 2
motor start mode 1
motor start mode 2
motor jump mode
motor play mode
motor jump mode 1
anti-windup active
anti-windup off
reset
reset
reset
1
(motor mode)
0001
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7327H 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital servo processor and Compact Disc decoder with integrated DAC for video CD CD7 II
SAA7327H/T/M2B,557 功能描述:視頻 IC COMPACT DISC SYSTEMS RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
SAA7327HBG 功能描述:視頻 IC COMPACT DISC SYSTEMS RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
SAA7335 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DSP for CD and DVD-ROM systems
SAA7335GP 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:DSP for CD and DVD-ROM systems
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