Yamaha LSI YMF715 Technical Information Page 56
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2-10 Service Guide
Table 2-2 PCI1250 Terminal Functions
Name No. I/O Type Function
BVD2
(SPKR)
Y05 D10 I Battery Voltage Detect 2. Generated by 16-bit
memory PC Cards that include batteries. BVD2 is
used with BVD1 as an indication of the condition of
the batteries on a memory PC Card. Both BVD1
and BVD2 are high when the battery is good. When
BVD2 is low and BVD1 is high, the battery is weak
and needs to be replaced. When BVD1 is low, the
battery is no longer serviceable and the data in the
memory PC Card is lost. See the Card Status
Change Interrupt Configuration Register for enable
bits. See the Card Status Change register and the
Interface Status register for the status bits for this
signal.
Speaker (SPKR) Speaker is an optional binary
audio signal available only when the card and
socket have been configured: for the 16-bit l/O
interface. The audio signals from cards A and B are
combined by the PCI 1250A and are output on the
SPKROUT pin.
DMA Request.: This pin may be used as the DMA
request signal during DMA operations to a 16-bit
PC Card that supports DMA. The PC Card asserts
this signal to indicate a request for a DMA
operation.
CD1
CD2
G03
W06
H20
C09
I PC Card Detect 1 and Card Detect 2. CD1 and CD2
are connected to ground internally on the PC Card.
When a PC Card is inserted into a socket. these
signals are pulled low. The signal status is available
by reading the interface status register
CE1
CE2
K01
L02
D20
D19
O Card Enable 1 and Card Enable 2. These signals
enable even and odd numbered address bytes. CE1
enables even numbered address bytes and CE2
enables odd numbered address bytes.
INPACK Y01 D12 I Input acknowledge. This signal is asserted by the
PC Card when it can respond to an l/O read cycle
at the current address.
DMA Request. This pin may be used as the DMA
request signal during DMA operations from a 16-bit
PC Card that supports DMA. If used as a strobe,
the PC Card asserts this signal to indicate a
request for a DMA operation.
IORD L04 E17 O I/O read. IORD is asserted by the PCI1250A to
enable 16-bit t/O PC Card data output during host
l/O read cycles.
DMA Write. This pin is used as the DMA write
strobe during DMA operations from a 16-bit PC
Card which supports DMA. The PCI1250A asserts
this signal during DMA transfers from the PC
Card to host memory.
- 390 Series390 Series 1
- CopyrightCopyright 2
- DisclaimerDisclaimer 2
- Manual Structure 3
- Conventions 4
- Chapter 3 BIOS Setup Utility 7
- List of Figures 9
- List of Tables 11
- System Introduction 13
- 1.2 System Board Layout 14
- System Introduction 1-3 15
- 1.2.2 CPU Board 16
- 1.2.3 Audio Board 17
- 1.2.4 Battery Board 17
- 1.2.5 Keyboard/Touchpad Board 18
- 1.3 Jumpers and Connectors 19
- 1-8 Service Guide 20
- Table 1-2 SW1 Switch Settings 20
- 1.4.1 Memory Address Map 21
- 1.4.2 Interrupt Channel Map 21
- 1.4.3 DMA Channel Map 22
- 1.4.4 I/O Address Map 22
- • Memory bus width: 64-bit 23
- 1.4.8 Second-Level Cache 24
- 1.4.9 Video Memory 25
- 1.4.10 Video 25
- 1.4.11 Parallel Port 26
- 1.4.12 Serial Port 27
- 1.4.13 Audio 27
- 1.4.14 PCMCIA 27
- 1.4.15 Touchpad 28
- 1.4.16 Keyboard 28
- 1.4.17 FDD 29
- 1.4.18 HDD 30
- 1.4.19 CD-ROM 30
- • Rapid mode 31
- • Charge-in-use mode 31
- • Trickle mode 31
- 1.4.22 DC-DC Converter 32
- 1.4.23 DC-AC Inverter 33
- 1.4.24 LCD 33
- 1.4.25 AC Adapter 34
- 1.5.1 BIOS 35
- STANDBY MODE 37
- LIGHT GREEN MODE 38
- HIBERNATION MODE 38
- DISPLAY STANDBY MODE 39
- • Flash power LED with 1 Hz 40
- • Windows 95 41
- Name Function Location 42
- 1.6 Block Diagrams 43
- 1.6.2 Clock 44
- System Introduction 1-33 45
- 1.8 Mechanical Specifications 46
- Major Chips Description 47
- 2.1.1 Features 48
- 2.1.2 Block Diagram 50
- 2.1.3 Terminal Functions 51
- 2-6 Service Guide 52
- Major Chips Description 2-7 53
- 2-8 Service Guide 54
- Major Chips Description 2-9 55
- 2-10 Service Guide 56
- Major Chips Description 2-11 57
- 2-12 Service Guide 58
- Major Chips Description 2-13 59
- 2-14 Service Guide 60
- Major Chips Description 2-15 61
- 2-16 Service Guide 62
- Major Chips Description 2-17 63
- 2-18 Service Guide 64
- Major Chips Description 2-19 65
- 2.2.1 M1531 66
- • Enhanced Power Management 68
- Major Chips Description 2-23 69
- 2.2.1.2 Pin Diagram 69
- 2-24 Service Guide 70
- 2.2.1.3 Signal Descriptions 70
- Major Chips Description 2-25 71
- 2-26 Service Guide 72
- Major Chips Description 2-27 73
- 2-28 Service Guide 74
- 2.2.1.4 Numerical Pin List 74
- Major Chips Description 2-29 75
- 2-30 Service Guide 76
- Major Chips Description 2-31 77
- 2-32 Service Guide 78
- Major Chips Description 2-33 79
- 2.2.2 M1533 80
- • Built-in PCI IDE controller 84
- • USB interface 84
- • SMBus interface 84
- Major Chips Description 2-39 85
- 2.2.2.2 Pin Diagram 85
- 2-40 Service Guide 86
- 2.2.2.3 Numerical Pin List 86
- Major Chips Description 2-41 87
- 2-42 Service Guide 88
- Major Chips Description 2-43 89
- 2-44 Service Guide 90
- Major Chips Description 2-45 91
- 2-46 Service Guide 92
- 2.3.1 Features 93
- • Serial Ports 94
- • Infrared Port 94
- • ISA Host Interface 94
- 2.3.2 General Description 95
- 2.3.3 Pin Configuration 96
- Major Chips Description 2-51 97
- 2.3.4 Pin Descriptions 98
- Major Chips Description 2-53 99
- BUFFER TYPE DESCRIPTIONS 100
- Major Chips Description 2-55 101
- 2.3.6 Block Diagram 102
- 2.4.1 Features 103
- • Drivers Features 105
- • Multimedia Software 105
- • Software Utilities 105
- • Software Documentation 105
- • Software Support 106
- • BIOS Features 106
- • System BIOS Hooks 106
- • BIOS Modify Program (BMP) 106
- 2.4.3 Introduction / Overview 107
- • PCI Bus 109
- • Display Memory Interface 110
- Major Chips Description 2-65 111
- 2-66 Service Guide 112
- 2.4.4.4 Pin Functions 112
- Table 2-8 65555 Pin Functions 112
- Major Chips Description 2-67 113
- MVCC and GND 113
- 2-68 Service Guide 114
- Major Chips Description 2-69 115
- 2-70 Service Guide 116
- Major Chips Description 2-71 117
- 2-72 Service Guide 118
- Major Chips Description 2-73 119
- 2-74 Service Guide 120
- Major Chips Description 2-75 121
- 2-76 Service Guide 122
- 2.5.1 Overview 123
- 2.5.2 Description 123
- 2.5.3 Pin Configuration 124
- 2.5.4 Pin Descriptions 125
- Functional Block Diagram 126
- 2.6.1 Features 127
- 2.6.2 Pin Diagram 128
- Multi-purpose Dins: 13 pins 129
- 2-84 Service Guide 130
- BIOS Setup Information 131
- 3-2 Service Guide 132
- 3.1 Basic System Settings 133
- 3.2 Startup Configuration 134
- BIOS Setup Information 3-5 135
- BIOS Setup Information 3-7 137
- 3.4 System Security 138
- 3.5 Power Management Settings 139
- 3.6 Load Default Settings 141
- 4.1.1 Before You Begin 142
- 4-2 Service Guide 143
- 4.1.2 Connector Types 144
- 4.1.3 Disassembly Sequence 145
- 4.2 Installing Memory 147
- 4.3 Removing the Modem Board 149
- 4.5 Removing the Keyboard 151
- 4.6.2 Removing the Display 154
- 4.6.4 Replacing the CPU 156
- 4.6.5 Detaching the Top Cover 157
- 4.6.6 Removing the Mainboard 158
- REMOVING THE CHARGER BOARD 160
- REMOVING THE PCMCIA SOCKETS 160
- REMOVING THE AUDIO BOARD 161
- REMOVING THE TOUCHPAD 162
- REMOVING THE SPEAKERS 162
- 4.7 Disassembling the Display 163
- 4-24 Service Guide 165
- Model Number Definition 166
- Exploded View Diagram 167
- Spare Parts List 174
- C-2 Service Guide 175
- Table C-1 Spare Parts List 175
- Spare Parts List C-3 176
- C-4 Service Guide 177
- Schematics 178
- CPU BD TO BD CONNECTOR 179
- ALADDIN IV 181
- M1533 BYPASS CAPACITORS 182
- 256K L2 PIPELINE BURST CACHE 183
- VCCP BYPASS CAP 189
- VCC BYPASS CAP 189
- Serial Port COM1 193
- FAN conn 194
- BIOS POST Checkpoints 202
- E-2 Service Guide 203
- BIOS POST Checkpoints E-3 204
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