PC AD1200 Reference
Bit 5 A/D Busy, Read Only.
54
Bit 4 Clear A/D Error, Write Only.
54
Bit 3 DMA Enable, Read / Write. AD1200 Only
54
Bit 2 Interrupt Enable, Read / Write.
55
Bits 0 & 1. Mode Bit 0 & 1. Read / Write.
56
Initialising The A/D Converter.
57
The A/D Gain Channel Register.
58
Bits 6 & 7. Gain select. Read / Write.
58
Bits 4 & 5. Reserved For Future Expansion. R/W.
59
Bits 0, 1, 2 & 3. Channel Select. Read / Write.
59
The A/D Converter Input Registers. Read Only
60
The DAC0 D/A Converter Output Registers.
62
The DAC1 D/A Converter Output Registers.
63
The Digital Output Port Register. Write Only
65
The Digital Input Port Register. Read Only
66
The Timer & Extended Mode Register. Read/ Write
66
Bits 0-5, TIMER Pacer Clock Divisor Bits. R/W.
67
Bits 6 & 7 XMODE, Extended Mode Read/Write.
69
The 8254 Counter Timer Registers. Read/ Write
70
Chapter 3 List Of Figures.
_______________________
Figure 3-1. AD1200 Register Map.
51
Figure 3-2. A/D Control Status Register.
53
Figure 3-3. Mode 0 & 1 Bits.
56
Figure 3-4. AD1200 Extended Mode Bits.
57
Figure 3-5. AD1210-21 Extended Mode Bit.
57
Figure 3-6. A/D Gain Channel Register.
58
Figure 3-7. Gain Selection.
59
Figure 3-8. Channel Selection.
60
Figure 3-9. ADC Low Byte Input Register.
61
Figure 3-10. ADC High Byte Input Register.
62
Figure 3-11. DAC0 Low Byte Output Register.
63
Figure 3-12. DAC0 High Byte Output Register.
63
Figure 3-13. DAC1 Low Byte Output Register.
65
Intro-9
