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ES1371 の電気的特性と機能

ES1371のメーカーはETCです、この部品の機能は「ENSONIQ AudioPCI 97 digital controller」です。


製品の詳細 ( Datasheet PDF )

部品番号 ES1371
部品説明 ENSONIQ AudioPCI 97 digital controller
メーカ ETC
ロゴ ETC ロゴ 




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ENSONIQ Proprietary Information
ENSONIQ AudioPCI™ 97
ES1371
Specification
1. INTRODUCTION
AudioPCI 97 is the new ENSONIQ AC97 digital controller which provides the next
generation of audio performance to the PC market. AudioPCI 97 is a 5.0 Volt PCI bus
compatible device that enables the ENSONIQ SoundScape PCI solution. AudioPCI 97
along with an AC97 CODEC offer the next generation of audio performance in a PC
while maintaining full legacy compatibility without old ISA bus solutions. Some of the
capabilities of AudioPCI 97 are:
SoundScape WaveTable synthesizer .
Full DOS Game Compatibility
Multiple sample rate support
PCI Bus Master for fast DMA
Sounds are stored in MainDamtaeSmhoereyt.4U.com
Access to Ensoniq’s World Famous Sound Library of over 4000 Sounds
3 Stereo inputs and 3 mono inputs can be mixed into the output stream.
Direct I/O space access of the control registers.
100 Pin PQFP or TQFP
External I2S input
No ISA bus pins required
Fully Compliant with PC97 Power Management specification
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ENSONIQ Proprietary Information
ENSONIQ AudioPCI 97 Specification Rev 1.1 Oct 1, 1997
1

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ENSONIQ Proprietary Information
3. BLOCK DIAGRAM
et4U.com
Legacy
PCI Interface Block
Ext IRQ
GPIO[3:0]
XTALi
XTALo
Joy[7:0]
Chip Select
& IRQ
& GPIO
Host Interface
Control
Clock Generation
Joystick
Cache
Control Block
High Speed
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Cache
Memory
UART
SRC CACHE
RAM
Sample Rate
Converter
AC97 CODEC
Controller
Serial Control
MIDI Out
MIDI In
AC LINK:
ac97_sync
sdata_out
bclk
sdata_in
I2S
[bclk,lrclk,data]
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ENSONIQ Proprietary Information
ENSONIQ AudioPCI 97 Specification Rev 1.1 Oct 1, 1997
3


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ENSONIQ Proprietary Information
et4U.com
4.11. Internal Memory
There are two separate sections of memory in AudioPCI 97. One section is allocated as a cache for the
playback and record channels and also as a FIFO for the UART. The other section is allocated to the
Sample Rate Converter module and is used as a cache for sample rate conversion and also as control
register space for the playback and record channels in the sample rate converter.
The internal memory for the sound cache in AudioPCI 97 is organized as 4 blocks of 64 bytes each. Each
block is divided into 4 pages of 16 bytes each (4 longwords). Memory can be accessed as longwords only.
In order to access a specific page of memory the memory page register must first be setup for the specific
page to be accessed. The first three blocks of memory contain the 3 circular buffers for the 2 playback
channels and the record channel. The last block contains the frame information for the playback and record
channels and also includes the UART FIFO. The memory block and page organization is shown below :
Block
0 - DAC 1
1 - DAC2
2 - ADC
3 - Frame/UART
Page
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Higher
Address
Lower
DAC1 sample bytes 15 - 0 Lower half buffer
DAC1 sample bytes 31 - 16
DAC1 sample bytes 47 - 32 Upper half buffer
DAC1 sample bytes 63 - 48
DAC2 sample bytes 15 - 0 Lower half buffer
DAC2 sample bytes 31 - 16
DAC2 sample bytes 47 - 32 Upper half buffer
DAC2 sample bytes 63 - 48
ADC sample bytes 15 - 0 Lower half buffer
ADCDsaamtapSlehebyette4sU3.1co-m16
ADC sample bytes 47 - 32 Upper half buffer
ADC sample bytes 63 - 48
DAC1, DAC2 frame information (see register descriptions)
ADC frame information (plus 2 open longwords)
UART fifo (only bits 8 - 0 of each longword are used)
UART fifo
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ENSONIQ Proprietary Information
ENSONIQ AudioPCI 97 Specification Rev 1.1 Oct 1, 1997
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共有リンク

Link :


部品番号部品説明メーカ
ES1371

ENSONIQ AudioPCI 97 digital controller

ETC
ETC
ES1371

ENSONIQ AudioPCI 97 digital controller

ETC
ETC
ES1371

ENSONIQ AudioPCI 97 digital controller

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ES1373

ENSONIQ AudioPCI 97 digital controller

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