Motorola MVME2700 Series Servisní příručka Strana 108
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Functional Description
3
ISA Super I/O Device (ISASIO)
The MVME2700 uses a PC87308 ISASIO chip from National
Semiconductor to implement certain segments of the P2 and front-panel
I/O:
❏ Two asynchronous serial ports (COM1 and COM2) via P2 and
transition module
❏ Parallel port via P2 and transition module:
– Centronics printer port in MVME712M-compatible models
– IEEE1284 bidirectional parallel port in MVME761-compatible
models
❏ Floppy disk drive support via drive/power connector J3
❏ Keyboard and mouse interface via circular DIN connectors J5 and
J7
Asynchronous Serial Ports
The two asynchronous ports provided by the ISASIO device employ TTL-
level signals that are buffered through EIA-232-D drivers and receivers
and routed to the P2 connector.
Hardware initializes the two serial ports as COM1 and COM2 with ISA
I/O base addresses of $3F8 and $2F8 respectively. This default
configuration also assigns COM1 to PIB (PCI/ISA Bridge Controller)
interrupt request line IRQ4 and COM2 to line IRQ3. To change the default
configuration, reprogram the ISASIO device. For detailed programming
information, refer to the PCI and ISA bus discussions in the
MVME2600/2700 Series Programmer’s Reference Guide and to the
vendor documentation for the ISASIO device.
Parallel Port
The parallel port is a Centronics printer interface in MVME712M-
compatible models, and a full IEEE1284 bidirectional parallel port in
MVME761-compatible models. Both versions are implemented with the
ISASIO device. All parallel I/O interface signals are routed to P2 through
series damping resistors.
- Installation and Use 1
- Safety Summary 3
- Flammability 4
- EMI Caution 4
- Lithium Battery Caution 4
- Contents 7
- List of Figures 13
- List of Tables 15
- About This Manual 17
- Summary of Changes 18
- Overview of Contents 18
- Comments and Suggestions 19
- 1Hardware Preparation and 21
- Installation 21
- Equipment Required 23
- Overview of Startup Procedure 23
- Table 1-1. Startup Overview 24
- Unpacking Instructions 25
- Hardware Configuration 25
- Flash Bank Selection (J9) 28
- SCON LED is turned on 31
- PRIMARY SIDE 33
- Install all jumpers on J1 36
- Remove all jumpers on J11 36
- Install all jumpers on J11 36
- Remove all jumpers on J1 36
- Install all jumpers on J16 37
- Remove all jumpers on J17 37
- Install all jumpers on J17 37
- Remove all jumpers on J16 37
- Install all jumpers on J13 38
- Remove all jumpers on J14 38
- Header J18 is open 38
- Remove all jumpers on J13 39
- Install all jumpers on J14 39
- P2 Adapter Preparation 42
- SERIAL 3COM1 COM2 PARALLEL 44
- 1910 9609 44
- 10/100 BASETSERIAL 4 44
- Header J18 1-2 Header J2 2-3 48
- Header J18 2-3 Header J2 1-2 49
- J17 1-2 50
- J19 1-2 50
- Headers: J16 2-3 51
- J17 2-3 51
- Header J3 1-2 51
- Header J2 2-3Header J18 1-2 52
- Header J2 1-2Header J18 2-3 53
- Header J3 2-3Headers: J16 2-3 54
- Header J3 1-2Headers: J16 2-3 55
- Header J3 2-3Headers J16 2-3 58
- Header J3 1-2Headers J16 2-3 59
- 1999 9701 65
- Hardware Installation 66
- 11871.00 (1-3) 9710 68
- PMC Module Installation 69
- 11871.00 (2-3) 9710 70
- 11871.00 (3-3) 9710 72
- INTERRUPT ACKNOWLEDGE 74
- System Considerations 81
- MVME2700 VME Module 82
- SPEAKER_OUT 83
- 2Operating Instructions 85
- Operating Instructions 86
- Memory Maps 88
- PCI Local Bus Memory Map 90
- VMEbus Memory Map 90
- Programming Considerations 91
- PCI Arbitration 92
- Interrupt Handling 93
- DMA Channels 94
- Sources of Reset 94
- Endian Issues 95
- 3Functional Description 99
- General Description 101
- Functional Description 102
- Block Diagram 103
- SCSI Interface 104
- Ethernet Interface 105
- PCI Mezzanine Interface 106
- VMEbus Interface 107
- ISA Super I/O Device (ISASIO) 108
- Programmable Timers 112
- Base Module Feature Register 114
- P2 Signal Multiplexing 115
- ABORT Switch (S1) 116
- RESET Switch (S2) 117
- FUS LED (DS5) on the 119
- SCSI LED on the module 119
- SCSI LED on 119
- Speaker Control 120
- MPC750 Processor 120
- RAM200 Memory Module 121
- MVME712M Transition Module 122
- MVME761 Transition Module 123
- 4Connector Pin Assignments 125
- Common Connectors 126
- Debug Connector (J2) 127
- ∗ RSRV∗ 38 128
- Floppy/LED Connector (J3) 131
- PCI Expansion Connector (J4) 132
- DRAM Mezzanine Connector (J6) 135
- RISCwatch Connector (J8) 138
- P1 and P2 Connectors 142
- MVME712M-Compatible Versions 143
- SCSI Connector 145
- Serial Ports 1-4 146
- Parallel Connector 147
- Ethernet AUI Connector 148
- MVME761-Compatible Versions 149
- Serial Ports 1 and 2 151
- Serial Ports 3 and 4 151
- 5PPCBug Firmware 155
- Memory Requirements 156
- Implementation 156
- Use the Debugger 157
- Debugger Commands 158
- Diagnostic Tests 162
- 6CNFG and ENV Commands 165
- CNFG and ENV Commands 166
- ENV – Set Environment 167
- (Default = device number 07) 169
- 00001000? 173
- (Default) 174
- ASpecifications 181
- Cooling Requirements 182
- EMC Compliance 183
- BSerial Interconnections 185
- EIA-232-D Connections 186
- Interface Characteristics 188
- EIA-530 Connections 189
- Proper Grounding 193
- Serial Interconnections 194
- CTroubleshooting CPU Boards: 195
- Solving Startup Problems 195
- FUS (or 196
- HOLD or 196
- PAUSE key 196
- HOLD or PAUSE key again 196
- Introduction 197
- DRelated Documentation 201
- Manufacturers’ Documents 202
- Related Specifications 205
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