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Datasheet: YMF740C (YAMAHA Corp.)

Ds-1l

 

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YAMAHA Corp.
YMF740C
DS-1L
YAMAHA CORPORATION
September 21, 1998
YMF740C CATALOG
CATALOG No.:LSI-4MF740C20
January 14, 1999
OVERVIEW
YMF740C (DS-1L) is a high performance audio controller for the PCI Bus. DS-1L 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 41 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 32-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-1L supports PC/PCI protocols.
DS-1L supports the connection to AC'97 which provides high quality DAC, ADC and analog mixing.
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 32-voice XG capital Wavetable
Synthesizer including GM compatibility
DirectSound Hardware Acceleration
DirectMusic Hardware Acceleration
Downloadable Sound (DLS) level-1
Supports PC/PCI DMA for legacy DMAC (8237)
emulation
Legacy Audio compatibility
FM Synthesizer
Hardware Sound Blaster Pro compatibility
MPU401 UART mode MIDI interface
Joystick
Supports AC'97 Interface (AC-Link)
Hardware Volume Control
Single Crystal operation (24.576MHz)
5V Power supply for I/O. 3.3V Power supply for
Internal core logic
144-pin LQFP (YMF740C-V)
XG logo is a trademark of YAMAHA Corporation.
GENERAL MIDI logo is a trademark of Association of Musical Electronics Industry (AMEI),
and indicates GM system level 1 Compliant.
YMF740C
January 14, 1999
-2-
PIN CONFIGURATION
YMF740C-V
GP4
GP5
GP6
GP7
RXD
TXD
VOLDW#
VOLUP#
VDD5
VDD3
VSS
VSS
IRQ5
IRQ7
IRQ9
IRQ10
IRQ11
INTA#
VSS
RST#
VDD5
PVSS
PCICLK
GNT#
REQ#
AD31
AD30
AD29
PVSS
AD28
AD27
AD26
PVSS
AD25
AD24
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
130
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
144
143
142
141
140
139
138
137
136
135
134
133
132
131
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
AD23
AD22
AD19
PVSS
AD18
AD17
PVDD
PVSS
VSS
FRAME#
IRDY#
TRDY#
PVSS
AD15
PVSS
PVDD
AD14
PVSS
CBE3#
114
113
112
111
110
109
NC
GP3
GP2
GP1
GP0
XO24
XI24
VSS
VDD3
NC
NC
NC
NC
NC
NC
NC
VSS
VSS
VDD3
VDD5
PVDD
NC
PCREQ#
PCGNT#
NC
AD0
AD1
PVSS
AD2
AD3
AD4
PVSS
AD5
AD6
AD7
PVSS
PVDD
CBE0#
AD8
AD9
PVSS
AD10
AD11
AD12
LVSS
LOOPF1
LOOPF0
LVDD
NC
VSS
TEST6#
TEST5#
CSDO
CBCLK
CSDI
TEST3#
NC
NC
NC
IDSEL
PVSS
AD20
AD16
VDD3
CBE2#
DEVSEL#
STOP#
PERR#
PVSS
PAR
CBE1#
AD13
PVDD
PVSS
CMCLK
CSYNC
CRST#
NC
AD21
SERR#
TEST2#
TEST1#
TEST0#
NC
PVDD
NC
TEST4#
VDD5
TEST7#
GREF
144 Pin LQFP Top View
YMF740C
January 14, 1999
-3-
PIN DESCRIPTION
1. PCI Bus Interface (52-pin)
name
I/O
Type
Size
function
PCICLK
I
P
PCI Clock
RST#
I
P
Reset
AD[31:0]
IO
Ptr
Address / Data
C/BE[3:0]#
IO
Ptr
Command / Byte Enable
PAR
IO
Ptr
Parity
FRAME#
IO
Pstr
Frame
IRDY#
IO
Pstr
Initiator Ready
TRDY#
IO
Pstr
Target Ready
STOP#
IO
Pstr
Stop
IDSEL
I
P
ID Select
DEVSEL#
IO
Pstr
Device Select
REQA#
O
P
PCI Request
GNTA#
I
P
PCI Grant
PCREQ#
O
Ptr
PC/PCI Request
PCGNT#
I
Ptr
PC/PCI Grant
PERR#
IO
Pstr
Parity Error
SERR#
O
Pod
System Error
INTA#
O
Pod
Interrupt signal output for PCI bus
2. Legacy Device Interface (16-pin)
name
I/O
type
size
function
IRQ5
O
Ttr
12mA
Interrupt5 of Legacy Audio
It is directly connected to the interrupt signal of
System I/O chip.
IRQ7
O
Ttr
12mA
Interrupt7 of Legacy Audio
IRQ9
O
Ttr
12mA
Interrupt9 of Legacy Audio
IRQ10
O
Ttr
12mA
Interrupt10 of Legacy Audio
IRQ11
O
Ttr
12mA
Interrupt11 of Legacy Audio.
GP[3:0]
I
A
-
Game Port
GP[7:4]
I
Tup
-
Game Port
GREF
I
A
-
Reference for Game Port
RXD
I
Tup
-
MIDI Data Receive
TXD
O
T
3mA
MIDI Data Transfer
YMF740C
January 14, 1999
-4-
3. AC'97 Interface (6-pin)
name
I/O
Type
Size
function
CRST#
O
T
6mA
Reset signal for AC'97
CMCLK
O
C
-
Master Clock of AC link (24.576MHz) and
CBCLK
I
T
-
AC-link: Bit Clock for AC'97 audio data
CSDO
O
T
6mA
AC-link: AC`97 Serial audio output data
CSDI
I
T
-
AC-link: AC'97 Serial audio input data
CSYNC
O
T
6mA
AC-link: Synchronized signal
4. Miscellaneous (14-pin)
name
I/O
type
size
function
VOLUP#
I
Tup
-
Hardware Volume (Up)
VOLDW#
I
Tup
-
Hardware Volume (Down)
XI24
I
C
-
24.576 MHz Crystal
XO24
O
C
2mA
24.576 MHz Crystal
TEST[7:4,2:0]#
I
Tup
-
Test pins (Do not connect externally)
TEST3#
IO
Tup
3mA
Test pin (Connect to ground)
LOOPF[1:0]
-
-
-
Capacitor of PLL
5. Power Supply (39-pin)
name
I/O
type
size
function
PVDD[5:0]
-
-
-
Power supply for PCI Bus Interface (+5.0)
PVSS[14:0]
-
-
-
Ground for PCI Bus Interface
LVDD
-
-
-
Power supply for PLL Filter (+3.3)
LVSS
-
-
-
Ground for PLL Filter
VDD3[3:0]
-
-
-
Power supply (+3.3V)
VDD5[3:0]
-
-
-
Power supply (+5.0V)
VSS[7:0]
-
-
-
Ground
TYPE
T : TTL
A : Analog
Ptr : Tri-State PCI
Ttr : Tri-State TTL
C : CMOS
Pstr : Sustained Tri-Sate PCI
Tup : Pull up (Max. 300kohm) TTL
P : PCI
Pod : Open Drain PCI
Note) All pins except the above pins are NC (No Connection) pins. Do not connect externally.
YMF740C
January 14, 1999
-5-
BLOCK DIAGRAM
PCI Bus
Interface
BUS Master
DMA Controller
Memory
XG Synthesizer
Direct Sound Acc.
Wave In/Out
PC-PCI
SB Pro
FM
MPU401
Joystick
Rate Converter
/ Mixer
Interface
AC'97
Legacy Audio
PCI Audio
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