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28 PCI-1713 User's Manual

4.8 Status Register  BASE+6 and

BASE+7

The registers of BASE+6 and BASE+7 provide information for the A/D

configuration and operation.

Table 4-7: Status register

The content of the status register of BASE+6 is the same as that of the

control register.

F/E FIFO Empty flag

This bit indicates whether the FIFO is empty. 1 means that the FIFO is

empty.

F/H FIFO Half-full flag

This bit indicates whether the FIFO is half-full. 1 means that the FIFO

is half-full.

F/F FIFO Full flag

This bit indicates whether the FIFO is full. 1 means that the FIFO is

full.

IRQ Interrupt flag

This bit indicates the interrupt status. 1 means that an interrupt has

occurred.

Read Status Register

Bit # 7 6 5 4 3 2 1 0

BASE+7 IRQ F/F F/H F/E

BASE+6 ONE/FH IRQEN GATE EXT PACER SW

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 ... 53 54

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Advantech PCI-1720 Manuel d'utilisateur Page 32