Technical data
Table Of Contents
- Technical Reference Manual for OEMs HP Models 743, 744, and 748
- Contents
- 1 General Information
- Model 743 and Model 744 VME Board Computers
- Product Description
- Supported Configurations
- Model 743 and Model 744 External Devices
- Keyboard and Mouse
- Model 743 and Model 744 Cables
- Model 743 and Model 744 Functional Description
- Model 744 Block Diagram
- CPU Circuit
- Boot ROM Circuit
- Graphics Circuit
- Model 743 Memory Controller Circuit
- Model 744 Memory Controller Circuit
- LED Displays
- I/O Controller ASIC
- VME Controller ASIC
- I/O Expansion
- I/O Expansion Block Diagrams
- Model 748 Ruggedized Workstation
- Model 743 and Model 744 VME Board Computers
- 2 References
- 3 Quality
- 4 Mechanical Information
- 5 Electrical Information
- Video Connector Pinouts
- Audio Connector Pinouts
- HP Parallel Connector Pinouts
- RS-232 Connector Pinouts
- AUI LAN Connector Pinouts
- Single-Ended SCSI Connector Pinouts
- FW SCSI Connector Pinout
- PS/2 Connector Pinouts
- VME Connector Pinouts
- Real-Time Clock (RTC) Battery Information
- Video Output Signal Specifications
- Video Timing Specifications
- 6 Power Requirements
- 7 Product Design Considerations
- Index
5-26
Electrical Information
Table 5-29 identifies the PMC JN1 signals on the PMC Bridge J21 connectors.
32 TRST +5 V GSC_AD31
Table 5-19 Model 744 VME P2 Pin Assignments and Signal Mnemonics
Pin
Number
Row A Row B Row C
Table 5-20 PMC JN1 Signals (Bridge J21)
Pin
Number
Signal
Pin
Number
Signal
1TCK 2 -12V
3 Ground 4 INTC
5 INTB# 6 INTA
7 BUSMODE1# 8 +5V
9 INTD# 10 PCI-RESERVED
11 Ground 12 PCI-RESERVED
13 CLK 14 Ground
15 Ground 16 GNTB#
17 REQB# 18 +5V
19 VDD(I/O) 20 AD31
21 AD28 22 AD27
23 AD25 24 Ground
25 Ground 26 C/BE3#
27 AD22 28 AD21
29 AD19 30 +5V
31 VDD(I/O) 32 AD17
33 FRAME# 34 Ground
35 Ground 36 IRDY#
37 DEVSEL# 38 +5V
39 Ground 40 LOCK#
41 SDONE# 42 SBO#
43 PAR 44 Ground
45 VDD(I/O) 46 AD15
47 AD12 48 AD11
49 AD09 50 +5V
51 Ground 52 C/BE0#
53 AD06 54 AD05
55 AD04 56 Ground