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Computer Group Literature Center Web Site
Functional Description
3
❏
5
1
/
4
-inch 1.2MB floppy disk drive
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Standard 250Kbps to 2Mbps tape drive system
Keyboard and Mouse Interface
The National Semiconductor PC97307 ISA Super I/O chip is used to
implement certain segments of the ROM-based keyboard and mouse
interface control. The keyboard and mouse control signals are routed to a
single 6-pin circular DIN connector on the transition module. Keyboard
functions can be obtained by plugging the keyboard directly into this
connector. To get both keyboard and mouse functions requires a Y adapter
cable (Motorola Part Number: 30NW9302B83). Refer to the TMCP700
Transition Module Installation and Use manual for details.
PCI Peripheral Bus Controller (PBC)
The MCP750HA uses the VIA Technologies VT82C586 Peripheral Bus
Controller (PBC) to supply the interface between the PCI local bus and the
ISA, IDE and USB systems I/O bus (illustrated in
The PBC controller provides the following functions:
❏
ISA (Industry Standard Architecture) bus arbitration for DMA
devices
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ISA interrupt mapping
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USB v1.0/HCI v1.1 compatible host/hub interface with two ports
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Enhanced IDE Controller with ultra DMA-33 support
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Interrupt controller functionality to support 14 ISA interrupts
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Edge/level control for ISA interrupts
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Seven independently programmable DMA channels
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Three interval counters/timers (82C54 functionality)
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I
2
C interface via software programmable GPIO port
Summary of Contents for MCP750HA Series
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