Diamond Systems HERCULES-EBX HRC400-5A128, Руководство пользователя, Страница: 63 / 123

Hercules-EBX CPU User Manual V1.02 Page 63
Base + 1 Write Analog Configuration Register
Bit No. 7 6 5 4 3 2 1 0
Name DABU SEDIFF ADBU
The analog configuration register is typically written to once at the start of an application and then
remains unchanged.
DABU 0 = bipolar, 1 = unipolar D/A output range (Default on reset is unipolar mode)
SEDIFF 0 = single-ended, 1 = differential A/D mode
ADBU 0 = bipolar, 1 = unipolar A/D input range
Note that these signal settings can be read back from Base + 4.
Base + 1 Read A/D MSB Register
Bit No. 7 6 5 4 3 2 1 0
Name AD15 AD14 AD13 AD12 AD11 AD10 AD9 AD8
AD15-8 A/D MSB data
The A/D data must be read LSB first, followed by MSB.
Base + 2 Read/Write A/D Low Channel Register
Bit No. 7 6 5 4 3 2 1 0
Name L4 L3 L2 L1 L0
L4-0 A/D low channel number
Base + 3 Read/write A/D High Channel Register
Bit No. 7 6 5 4 3 2 1 0
Name H4 H3 H2 H1 H0
AD15-8 A/D MSB data