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参数资料
| 型号： | YMF744B |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | DS-1S |
| 中文描述： | 的DS - 1秒 |
| 文件页数： | 17/60页 |
| 文件大小： | 303K |
| 代理商： | YMF744B |
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YMF744B
February 3, 1999
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b12..............PR4: AC’97 Power Down Control 4
This bit controls the power state of the AC-link in the Primary AC’97.
“0”: Normal
(default)
“1”: Power down
b13..............PR5: AC’97 Power Down Control 5
Setting this bit to “1” disables the internal clock of the Primary AC’97.
In case the AC’97 is used with
DS-1S, the master clock is supplied from DS-1S.
Therefore, when the clock is stopped completely, set
PR5 bits to “1” firstly, then the CMCD bit should be set to “1” after duration of 20s or longer.
“0”: Normal
(default)
“1”: Disable
b14..............PR6: AC’97 Power Down Control 6
This bit controls PR6 bit status of the power control register in the Primary AC’97.
b15..............PR7: AC’97 Power Down Control 7
This bit controls PR7 bit status of the power control register in the Primary AC’97.
Respective data set to b[15:8] are correspondingly set into the “Power down Control/Status” register in the
Primary AC’97 via the AC-Link. These are not set into the power down register in the Secondary AC’97.
4C-4Dh: D-DMA Slave Configuration
Read / Write
Default: 0000h
Access Bus Width: 8, 16, 32-bit
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
Base Address
EA
TS
CE
b0................CE: Channel Enable
This bit enables the Distributed DMA function.
“0”: Disable Distributed DMA
(default)
“1”: Enable Distributed DMA
b[2:1] ..........TS: Transfer Size
These bits indicate the size of the DMA transfer. Since DS-1S supports only 8-bit DMA transfer, the bits
are hardwired to 00b.
b3................EA: Extended Address
DS-1S does not support extended address mode.
This bit is hardwired to 0b.
b[15:4] ........Base Address : D-DMA Slave Base Address
These bits indicate the D-DMA slave base address.
相关PDF资料 |
PDF描述 |
|---|---|
| YMF752 | AC97 Rev2.1 Audio CODEC with SRC |
| YMF752-S | AC97 Rev2.1 Audio CODEC with SRC |
| YMF753-S | SPECIALTY CONSUMER CIRCUIT, PQFP48 |
| YMF753 | AC97 Revision2.2 Audio CODEC with Digital Audio I/F |
| YMF754-R | SPECIALTY MICROPROCESSOR CIRCUIT, PQFP128 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| YMF744BR | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
| YMF744BV | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Industrial Control IC |
| YMF752 | 制造商:YAMAHA 制造商全称:YAMAHA CORPORATION 功能描述:AC97 Rev2.1 Audio CODEC with SRC |
| YMF752-S | 制造商:YAMAHA 制造商全称:YAMAHA CORPORATION 功能描述:AC97 Rev2.1 Audio CODEC with SRC |
| YMF753 | 制造商:YAMAHA 制造商全称:YAMAHA CORPORATION 功能描述:AC97 Revision2.2 Audio CODEC with Digital Audio I/F |
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