Advantech PCL-849 manual Interrupt Status Register S1 Bit

Page 17

switch S1 designates the card's interrupt status register address, as shown in the following figure and table.

Interrupt Status Register S1

Bit

Function

0

Port 1

1

Port 2

2

Port 3

 

 

3

Port 4

 

 

4

Not Used

 

 

5

Not Used

6

Not Used

7

Not Used

The user may change the interrupt status register address via S1. Please note that the address decoder will occupy a continuous, 16-byte area related to the switch setting. For example, if you set the switch to 210H, then the address 210H to 21FH will all be decoded. The various DIP switch settings (S1) for the interrupt status register are as shown in the table opposite.

1 8

PCL-849 User's Manual

Image 17
Contents PCL-849 Port RS-232 Interface Card Copyright Notice Acknowledgments Contents Introduction Description Specifications Features· Uart Switch and jumper layout Page Hardware Installation Initial Inspection Card Installation Default Settings Card ConfigurationAddress and Interrupt Setup Model Setup base address settingStandardMode Enhanced ModeInterrupt Level IRQ Setting S1, JP1, JP2, JP3, JP4 Default SettingsInterrupt Status Register Setup S1, Vector address Independent IRQ Mode JP1-JP4Shared IRQ Mode JP1 Interrupt Status Register S1 Bit DIP switch settings for S1 High Speed Mode Speed Mode selectionNormal Speed Mode Software Installation Operating Environment Selection Icom Utility Setup for Windows 95/98/NT EnvironmentsUtility Installation Board Type PCL-849 ConfigurationVector Address 200H ~ 3F0H Wiring Connector Pin Assignments RS-232 signal wiring RTS CTS GND DSR DTR DCD PC I/O Address Reference PC I/O Address Usage Quick Reference Jumper Setting · IRQ Mode COM1 JP1