Omega ISA- BUS MULTI-FUNCTIONAL BOARD OME-A822PG - Manual (Page 4)

Tables of Contents
1. Introduction_________________________________________________________ 4
1.1 General Description __________________________________________________ 4
1.2 Features _____________________________________________________________ 4
1.3 Specifications _________________________________________________________ 5
1.3.1 Power Consumption : ________________________________________________________ 5
1.3.2 Analog Inputs ______________________________________________________________ 5
1.3.3 A/D Converter _____________________________________________________________ 5
1.3.4 DA Converter ______________________________________________________________ 6
1.3.5 Digital I/O_________________________________________________________________ 6
1.3.6 Interrupt Channel ___________________________________________________________ 6
1.3.7 Programmable Timer/Counter _________________________________________________ 7
1.3.8 Direct Memory Access Channel (DMA) _________________________________________ 7
1.4 Applications __________________________________________________________ 8
1.5 Product Check List ____________________________________________________ 8
2. Hardware Configuration ______________________________________________ 9
2.1 Board Layout_________________________________________________________ 9
2.2 I/O Base Address Setting ______________________________________________ 10
2.3 Jumper Settings______________________________________________________ 11
2.3.1 JP1 : D/A Internal Reference Voltage Selection___________________________________ 11
2.3.2 JP2 : D/A Int/Ext Ref Voltage Selection ________________________________________ 12
2.3.3 JP3 : Single-ended/Differential Selection________________________________________ 12
2.3.4 JP4 : A/D Trigger Source Selection ____________________________________________ 13
2.3.5 JP5 : Interrupt Level Selection ________________________________________________ 13
2.3.6 JP6 : User Timer/Counter Clock Input Selection __________________________________ 14
2.3.7 JP7 : DMA DACK Selection, JP8 : DMA DRQ Selection _____________________ 15
2.4 I/O Register Address__________________________________________________ 16
2.4.1 8254 Counter _____________________________________________________________ 17
2.4.2 A/D Input Buffer Register ___________________________________________________ 17
2.4.3 D/A Output Latch Register ___________________________________________________ 18
2.4.4 D/I Input Buffer Register ____________________________________________________ 19
2.4.5 Clear Interrupt Request______________________________________________________ 19
2.4.6 A/D Gain Control Register ___________________________________________________ 20
2.4.7 A/D Multiplex Control Register _______________________________________________ 21
2.4.8 A/D Mode Control Register __________________________________________________ 22
OME-A-822PGL/PGH Hardware Manual ---- 2