參數(shù)資料
型號： LM4560
廠商： National Semiconductor Corporation
英文描述： Advanced PCI Audio Accelerator
中文描述： 先進的PCI音頻加速器
文件頁數(shù)： 16/54頁
文件大?。?/td> 380K
代理商： LM4560
3.0 Register Description
(Continued)
Bit 7..0
X
Legacy SB16 / SBPRO Mixer
Register (indexed by SBR4) Data
Port
3.4.2.7 SBR6 (Legacy Sound Blaster ESP Reset Port)
Address:
AudioBase + 16h or AudioBase + 17h or SBBase
+ 6h or SBBase + 7h
Size:
1 bit
Type:
Write Only
Bit 0
1
Enter Legacy SB16 / SBPRO ESP
Reset State
Escape From SB16 / SBPRO ESP
Reset State
0
ESP Reset should do the following things:
Reset ESP to no operation status and clear ESP Busy Flag.
b. Stop wave engine SB channel operation.
Reset any flags that may affect the next command execu-
tion.
3.2.8 SBR7 (Legacy Sound Blaster ESP Data Port)
Address:
AudioBase + 1Ah or AudioBase + 1Bh or SBBase
+ Ah or SBBase + Bh
Size:
8 bits
Type:
Read Only
Default:
00h
Bit7..0
1
Data returned by Legacy SB16 /
SBPRO ESP Read Operation
3.4.2.9 SBR8 (Legacy Sound Blaster Command / Status
Port)
Address:
AudioBase + 1Ch orAudioBase + 1Dh or SBBase
+ Ch or SBBase + Dh
Size:
8 bits
Type:
Read/Write
Default:
00h
Write
Bit7..0
X
The Command (Operator) or Data
(Operand) Written to Legacy SB
ESP.
Read
Bit 7
0
Legacy SB ESP is Available For
Next Command / Data
Legacy SB ESP is Busy
Reserved
1
X
Bit 6..0
After the command / data has been written to the ESP Com-
mand / DATA port, bit 7 of this status register will be set to 1
(busy). After ESP has processed the written command / data
and waiting for the next one, bit 7 of this status register will
be reset to 0 (not busy). Any acknowledge byte must be
readback before any new command is issued. ESP will be
set busy after this port has ever been written and will be set
not busy if the command/status has been read four times.
3.4.2.10 SBR9 (Legacy Sound Blaster ESP Data Ready
/ IRQ Acknowledge Port 1)
Address:
AudioBase + 1Eh or SBBase + Eh
Size:
1 bit
Type:
Read Only
Default:
00h
Bit 7
0
1
X
Data is not available on SBR7
Data is available on SBR7
Reserved
Bit 6..0
Reading this register will clear the interrupt generated by the
ESP for NON-BX type legacy SB DMA command. After
SBR7 has been read, bit 7 of this register will reset to 0 (no
data) until the next read data is available and set bit 7 of this
register.
3.4.2.11 SBR10 (Legacy Sound Blaster ESP Data Ready
/ IRQ Acknowledge Port 2)
Address:
AudioBase + 1Fh or SBBase + Fh
Size:
1 bit
Type:
Read Only
Default:
00h
Bit 7
0
1
X
Data is not available on SBR7.
Data is available on SBR7.
Reserved
Bit 6..0
Reading this register will clear the interrupt generated by the
ESP for BX type legacy SB DMA command. After SBR7 has
been read, bit 7 of this register will reset to 0 (no data). If the
next read data is available at SBR7, bit 7 of this register will
again be set to 1.
3.4.3 Legacy MPU-401 Register
These 4-byte registers can be accessed on Audio Base (I/O
or MEM), or MPU401 Base.
3.4.3.1 MPUR0 (Legacy MPU-401 Data Port / IRQ
Acknowledge Port)
Address:
AudioBase + 20h or MPU401Base + 0h
Size:
8 bits
Type:
Read/Write
Default:
FEh
Read
Bit 7..0
MPU-401 Acknowledge Byte or
External MIDI Input Data in MIDI-IN
FIFO;
Write
Bit 7..0
When internal loopback mode is enabled, reading this port
will not update the MIDI-IN FIFO read counter.
MIDI Output Data
3.4.3.2 MPUR1 (Legacy MPU-401 Command / Status
Port)
Address:
AudioBase + 21h or MPU401Base + 1h
Size:
8 bits
Type:
Read/Write
Default:
80h
Read MPU-401 Status
www.national.com
16
相關PDF資料
PDF描述
LM45BIM3 SOT-23 Precision Centigrade Temperature Sensors
LM45BIM3X SOT-23 Precision Centigrade Temperature Sensors
LM45B SOT-23 Precision Centigrade Temperature Sensors
LM4610 Dual DC Operated Tone/Volume/Balance Circuit with National 3-D Sound
LM4610N Dual DC Operated Tone/Volume/Balance Circuit with National 3-D Sound
相關代理商/技術參數(shù)
參數(shù)描述
LM4560VJD 制造商:Rochester Electronics LLC 功能描述:- Bulk
LM4562 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual High Performance, High Fidelity Audio Operational Amplifier
LM4562_07 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Dual High Performance, High Fidelity Audio Operational Amplifier
LM4562HA 制造商:Texas Instruments 功能描述:OP Amp Dual GP ??17V 8-Pin TO-99 Tray
LM4562HA/NOPB 功能描述:運算放大器 - 運放 RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉換速度:0.89 V/us 關閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*