Spu L-Iard Ware; P'ower Suf>Ply; Processor Board; Bus Architecture - HP 340 Series Service Manual

Figure I-Id. Model 340M
SPU Hardware
Power Supply
A modular power supply is provided for the voltages required. Its voltage select switch
IS
user-accessible.
Processor Board
Here's a llist of what the processor board has:
• MC680:30 CPt:" at 16.67 MHz.
• MC68882 Floating-Point Coprocessor.
• Parity-Checking RAM Controller.
• HP-IB (IEEE-488) Interface with two-channel DMA controller.
•
RS-2:~2C
Serial Interface with DB25 connector.
• HP-HIL [nterface.
Bus Architecture
A 32-bit systern bus connects the video/graphics, SCSI if installed and RAM to the processor
board. If an HP 98013A DIO-I Slot is installed, ribbon cables connect its DIO backplane to the
SPU backplane. LAN interface is provided through the LAN connector to the processor board.
Product Information
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