AXIOMTEK DASP-52282, Руководство пользователя

Страница: 45 / 59

DASP-52282 Card User’s Manual
Registry Structure and Format
39
General Status Buffer Register is used to check the A/D activity.
The format is described as bellows.
EF: (Bit 0 = 0) FIFO is Empty
HF: (Bit 1 = 0) FIFO is Half-Full
FF: (Bit 2 = 0) FIFO is Full
PReady: (Bit 3 = 1) End of A/D Conversion
ExtPulse: (Bit 4 = 1) External Trigger is active
MidEnd: (Bit 5 = 1) End of External Middle Trigger
Diff/S.E.:
(Bit 6 = 1) Single-Ended; (Bit 6 = 0) Differential
EnDAC:
(Bit 7 = 0) Enable DAC1 and DAC2 output
CMDOK:
(Bit 8 = 1) PIC receive command and data are correct
Handshak: (Bit 9 = 1) Setting Command to PIC
ModSel0,1,2:
(Bit 10,11,12) Selected ADC operation mode, refer to
section 2.3.4 Mode0-2
OUT0:
(Bit 13 = 1) Status of 8254 Counter0 is high
SetINT: (Bit 14 = 1) Interrupt event active
CMDCRL:
(Bit 15 = 1) Write command and data to PIC