4-20
Theory of Operation
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Extended Capabilitie Port (ECP) compatible, including level 2 support
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Bidirectional under either software or hardware control
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Compatible with ISA and EISA architectures
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Ability to multiplex FDC signals on parallel port pins allows use of an external Floppy
Disk Drive (FDD)
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Includes protection circuit to prevent damage to the parallel port when a connected
printer is powered up or is operated at a higher voltage
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UARTs:
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Software compatible with the PC16550A and PC16450
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MIDI baud rate support
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Infared support on UART2 (IrDA and Sharp-compliant)
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Address Decoder
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6-bit or 10-bit decoding
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External Chip Select capability when 10-bit decoding
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Full relocation capability (no limitation)
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Enhanced Power Management
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Special configuration registers for power-down
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Enhanced programmable power-down FDC command
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Auto power-down and wake-up modes
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2 special pins for power management
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Typical current consumption during power-down is less than 10 µA
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Reduced pin leakage current
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Mixed Voltage support
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Supports standard 5V operation
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Supports 3.3V operation
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Supports mixed internal 3.3V operation with 3.3V/5V external configuration
•
General Purpose Pins:
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2 pins the Bidirectional Parallel Port, for 2 separate programmable chip select
decoders, can be programmed for game port control
•
Plug and Play Compatible:
•
16 bit addressing (full programmable)
•
10 selectable IRQs
•
3 selectable DMA Channels
•
3 SIRQ Inputs allow external devices to mapping IRQs
•
100-pin TQFP package - PC87336VJG
Содержание Extensa 670
Страница 1: ...Extensa 670 Extensa 670 Service Guide PART NO 49 47010 001 DOC NO SG248 9708A PRINTED IN TAIWAN ...
Страница 46: ...Service Guide 4 7 Figure 4 2 M1521 Pin Assignments ...
Страница 51: ...4 12 Theory of Operation Figure 4 6 M6377 Chip Pinouts ...
Страница 56: ...Service Guide 4 17 Figure 4 10 TI1130 Chip PCI to CardBus 32 bit Pinouts ...
Страница 60: ...Service Guide 4 21 The pin diagram is shown in Figure 4 12 Figure 4 12 NS87336VJG Chip Pinouts ...
Страница 102: ...A 10 Maintenance Data Figure A 7 Main Board Logic Diagrams Sheet 1 of 36 ...
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