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PDF YMF724F-V Data sheet ( Hoja de datos )

Número de pieza YMF724F-V
Descripción high performance audio controller for the PCI Bus
Fabricantes ETC 
Logotipo ETC Logotipo



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YMF724F
DS-1
OVERVIEW
YMF724F (DS-1) is a high performance audio controller for the PCI Bus. DS-1 consists of two separated
functional blocks. One is the PCI Audio block and the other is the Legacy Audio block. PCI Audio block
allows Software Driver to handle maximum of 73 concurrent audio streams with the Bus Master DMA engine.
The PCI Audio Engine converts the sampling rate of each audio stream and the streams are mixed without
utilizing the CPU or causing system latency. By using the Software Driver from YAMAHA, PCI Audio
provides 64-voice XG wavetable synthesizer with Reverb and variation. It also supports DirectSound hardware
accelerator, Downloadable Sound (DLS) and DirectMusic accelerator.
Legacy Audio block supports FM Synthesizer, Sound Blaster Pro, MPU401 UART mode and Joystick
function in order to provide hardware compatibility for numerous PC games on real DOS without any software
driver. To achieve legacy DMAC compatibility on the PCI, DS-1 supports both PC/PCI and Distributed DMA
protocols. DS-1 also supports Serialized IRQ for legacy IRQ compatibility.
DS-1 supports the connection to AC’97 which provides high quality DAC, ADC and analog mixing.
In addition, it supports consumer IEC958, Audio Digital Interface (SPDIF) output, for high-quality, external
audio amplification.
FEATURES
• PCI 2.1 Compliant
• PC’97/PC’98 specification Compliant
• PCI Bus Power Management rev. 1.0 Compliant
(Support D0, D2 and D3 state)
• PCI Bus Master for PCI Audio
True Full Duplex Playback and Capture with
different Sampling Rate
Maximum 64-voice XG capital Wavetable
Synthesizer including GM compatibility
DirectSound Hardware Acceleration
DirectMusic Hardware Acceleration
Downloadable Sound (DLS) level-1
• Legacy Audio compatibility
FM Synthesizer
Hardware Sound Blaster Pro compatibility
MPU401 UART mode MIDI interface
Joystick
• Supports PC/PCI and Distributed DMA for legacy
DMAC (8237) emulation
• Supports Serialized IRQ
• Supports YAMAHA AC-3 device (YMF727 :
AC3F2) interface to enable AC-3 decode
• Supports Consumer IEC958 Output (SPDIF) port
• Supports AC’97 Interface (AC-Link)
• Hardware Volume Control
• EEPROM Interface
• Single Crystal operation (24.576MHz)
• 5V Power supply for I/O. 3.3V Power supply for
Internal core logic
• 144-pin LQFP (YMF724F-V)
YAMAHA CORPORATION
YMF724F CATALOG
CATALOG No.:LSI-4MF724F20
SeJpantueamryb1e4,r129919, 1998

1 page




YMF724F-V pdf
YMF724F
3. YMF727(AC3F2) Interface (9-pin)
name
XRST#
ACS#
ASCLK
ACDO
ACDI
ALRCK
ABCLK
ASDO
ASDI
I/O type
OC
OT
OT
OT
I Tup
OT
OT
OT
I Tup
size
2mA
3mA
6mA
3mA
-
3mA
6mA
3mA
-
function
Reset for local device
Chip select for AC3F2
Clock for Serial control data transfer of AC3F2
Serial control data output of AC3F2
Serial control data input of AC3F2
L/R clock for Serial audio data of AC3F2
Bit clock for Serial audio data of AC3F2
Serial audio data output to AC3F2
Mixed Serial audio data input of AC3F2
4. SPDIF Interface (1-pin)
name
DIT
I/O type
OT
Size
3mA
function
Digital audio interface output (48kHz)
5. Legacy Device Interface (16-pin)
name
IRQ5
IRQ7
IRQ9
IRQ10
IRQ11
GP[3:0]
GP[7:4]
GREF
RXD
TXD
I/O type Size
function
O Ttr 12mA Interrupt5 of Legacy Audio
It is directly connected to the interrupt signal of
System I/O chip.
O Ttr 12mA Interrupt7 of Legacy Audio
O Ttr 12mA Interrupt9 of Legacy Audio
O Ttr 12mA Interrupt10 of Legacy Audio
O Ttr 12mA Interrupt11 of Legacy Audio.
IA
- Game Port
I Tup
- Game Port
IA
- Reference for Game Port
I Tup
- MIDI Data Receive
O T 3mA MIDI Data Transfer
January 14, 1999
-5-

5 Page





YMF724F-V arduino
YMF724F
00 - 01h: Vendor ID
Read Only
Default: 1073h
Access Bus Width: 8, 16, 32-bit
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Vendor ID
b[15:0] ........Vendor ID
This register contains the YAMAHA Vendor ID registered in Revision 2.1. This register is hardwired to
1073h.
02 - 03h: Device ID
Read Only
Default: 000Dh
Access Bus Width: 8, 16, 32-bit
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
Device ID
b[15:0] ........Device ID
This register contains the Device ID of DS-1. This register is hardwired to 000Dh.
04 - 05h: Command
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
-
-
-
-
-
-
- SER - PER -
-
- BME MS
-
b1................MS: Memory Space
This bit enables DS-1 to response to Memory Space Access.
“0”: DS-1 ignores Memory Space Access.
(default)
“1”: DS-1 responds to Memory Space Access.
b2................BME: Bus Master Enable
This bit enables DS-1 to act as a master device on the PCI bus.
“0”: Do not set DS-1 to be the master device.
(default)
“1”: Set DS-1 to be the master device.
b6................PER: Parity Error Response
This bit enables DS-1 responses to Parity Error.
“0”: DS-1 ignores all parity errors.
“1”: DS-1 performs error operation when DS-1 detects a parity error.
January 14, 1999
-11-

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