Measurement Computing Personal488 rev.1.0 - Manual (Page 33)

Personal488 for Windows 95/98/Me/NT/2000/XP 889496 Hardware Configuration Reference 4-7
GP488B Configurations
Interrupt
Level 5 DMA
Channel 1
J3 J4
On-board
8 MHz Clock
J5
J3 J4
J5
SW1
IEEE 488
Connector
8-Bit One Card Edge
Base Address
02E1
Interrupt
Level 5
GP488B Interface Board GP488B Default Settings
No Wait
States
SW1
6
7
8
5
2
3
OP
E
N
14
6
7
8
5
2
3
O
PEN
14
The I/O base address, IRQ, and DMA settings are switch/jumper selectable via the
following locations on the GP488B interface board: One 8-microswitch DIP switch labeled
SW1, two 12-pin headers labeled J3 and J4, and one 3-pin header labeled J5. The DIP
switch settings, and the arrangement of the jumpers on the headers set the hardware
configuration.
For the next steps, make sure that the I/O address, IRQ, and DMA, set on the interface
board are different from any existing ports in your system. A conflict results when two I/O
addresses, IRQs, or DMAs are the same. (As the exception, additional GP488B interfaces
may share the same IRQ and DMA values). If there is a conflict, reconfigure the
switch/jumper settings. Refer to the following figures as needed.
Selected I/O Base
Address
02E1 22E1 42E1 62E1
Register
Automatic Offset Addresses Read Register Write Register
02E1 22E1 42E1 62E1 Data In Data Out
06E1 26E1 46E1 66E1 Interrupt Status 1 Interrupt Mask 1
0AE1 2AE1 4AE1 6AE1 Interrupt Status 2 Interrupt Mask 2
0EE1 2EE1 4EE1 6EE1 Serial Poll Status Serial Poll Mode
12E1 32E1 52E1 72E1 Address Status Address Mode
16E1 36E1 56E1 76E1 CMD Pass Through Auxiliary Mode
1AE1 3AE1 5AE1 7AE1 Address 0 Address 0/1
1EE1 3EE1 5EE1 7EE1 Address 1 End of String