Quatech
DS-102
user manual
Specifications
Diagram of DS-102
Factory default
Setting the address
Port Address IRQ Enabled ?
Computer will not boot up
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Contents
DS-102
Page
Table of Contents
IV. Setting Interrupt Levels Irqs
VII. Specifications VIII. Troubleshooting
External Connections VI. Serial Port Functional Description
Page
Date of Purchase Model Number
Page
General Information
Port Address IRQ Enabled ?
Diagram of DS-102
Setting the address
Examination of a serial port base address
Serial 1 uses SW1 Serial 2 uses SW2
Enabling or disabling ports
Recommended addresses for serial ports
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Serial
Interrupt Sharing
Channel Connection Interrupt Operation
External Connections
J7 -- Serial J8 -- Serial
DS-102 connector definitions for RS-232-C
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VI. Serial Port Functional Description
Accessing the Serial Port registers
Dlab
Interrupt Enable Register
Interrupt Identification Register
Interrupt Identification Register bit definitions
Fifo Control Register 16550 only
RXT0
Line Control Register
Stkp EPS PEN Parity
Modem Control Register
Are being used
Line Status Register
Line Status Register bit definitions
Modem Status Register
Scratchpad Register
Fifo Interrupt Mode Operation 16550 Uart only
When the receiver Fifo and receiver interrupts are enabled
Fifo polled mode operation 16550 Uart only
Factory default
Baud Rate Selection
026
VII. Specifications
16450 16550 optional
Computer will not boot up
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