參數(shù)資料
型號: SAA7146A
廠商: NXP Semiconductors N.V.
英文描述: Multimedia bridge, high performance Scaler and PCI circuit SPCI
中文描述: 多媒體橋梁,高性能潔牙機和PCI電路SPCI
文件頁數(shù): 121/144頁
文件大?。?/td> 645K
代理商: SAA7146A
1998 Apr 09
121
Philips Semiconductors
Product specification
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
SAA7146A
7.16.5.4
Bit clock control
Specific to each audio interface, A1 or A2, is the programming of bit clock source.
Table 109
CLK source definition
7.16.6
S
WITCHING AUDIO STREAMS
There are different levels of switching data streams on and off:
DMA transfer enable; switching a DMA channel
AUDIO_MODE; switching the two audio interfaces
WSx_CTRL; switching a physical channel.
The AUDIO_MODE and WSx_CTRL programming is locally buffered and gets loaded when the corresponding DMA
protection address is reached. When both interfaces are off, changes are loaded immediately.
If an audio interface is switched on, it will start working at TSL pointer reset. Disabling a DMA channel clears the
corresponding FIFO and sets the DMA pointers to their base address: this is the initial state. It is recommended to enable
the output DMA channels before activating the interface, since the output FIFO has to be filled with valid output data.
It is the responsibility of the software to configure data structures, TSL sequences and protection address in such a way,
that they match each other.
AX_CLKSRC [4:0]
(HEX)
A1 BIT CLOCK
A2 BIT CLOCK
1F to 13
12
11
10
0F
0E
0D
0C
0B
0A
09
08
07
06
05
04
03
02
01
00
reserved
ACLK divided-by-384
ACLK divided-by-256
ACLK divided-by-192
ACLK divided-by-128
ACLK divided-by-96
ACLK divided-by-64
ACLK divided-by-48
ACLK divided-by-32
ACLK divided-by-24
ACLK divided-by-16
ACLK divided-by-12
ACLK divided-by-8
ACLK divided-by-6
ACLK divided-by-4
ACLK divided-by-3
ACLK divided-by-2
ACLK
BCLK2
BCLK1
reserved
ACLK divided-by-384
ACLK divided-by-256
ACLK divided-by-192
ACLK divided-by-128
ACLK divided-by-96
ACLK divided-by-64
ACLK divided-by-48
ACLK divided-by-32
ACLK divided-by-24
ACLK divided-by-16
ACLK divided-by-12
ACLK divided-by-8
ACLK divided-by-6
ACLK divided-by-4
ACLK divided-by-3
ACLK divided-by-2
ACLK
BCLK1
BCLK2
相關(guān)PDF資料
PDF描述
SAA7151 Digital multistandard colour decoder with SCART interface DMSD2-SCART
SAA7151B Digital multistandard colour decoder with SCART interface DMSD2-SCART
SAA7157 Clock signal generator circuit for digital TV systems SCGC
SAA7157T Clock signal generator circuit for digital TV systems SCGC
SAA7158 Back END IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SAA7146AH 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multimedia bridge, high performance Scaler and PCI circuit SPCI
SAA7146AH/V3,557 制造商:NXP Semiconductors 功能描述:
SAA7146AH/V4,557 功能描述:視頻 IC VIDEO PCI BRIDGE (QFP160) 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
SAA7146AH-V4.557 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multimedia bridge, high performance Scaler and PCI circuit
SAA7146AHZ 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Multimedia bridge, high performance Scaler and PCI circuit SPCI