Digi NS9750 User Manual

Page 706

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B B u s s l a v e a n d D M A i n t e r f a c e

6 8 2

N S 9 7 5 0 H a r d w a r e R e f e r e n c e

D23

R/W

FDBGM

0x0

Forward data FIFO byte gap mask
(FwDatFifoByteGapMask)

0

Mask the interrupt

1

Enable the interrupt

D22

R/W

FCBGM

0x0

Forward command FIFO byte gap mask
(FwCmdFifoByteGapMask)

0

Mask the interrupt

1

Enable the interrupt

D21

R/W

FDMBM

0x0

Forward data FIFO max buffer mask

(FwDatFifoMaxBufMask)

0

Mask the interrupt

1

Enable the interrupt

D20

R/W

FCMBM

0x0

Forward command FIFO max buffer mask

(FwCmdFifoMaxBufMask)

0

Mask the interrupt

1

Enable the interrupt

D19

R/W

FDRIM

0x0

Forward data FIFO ready interrupt mask

(FwDatFifoRdyInterruptMask)

0

Mask the interrupt

1

Enable the interrupt

D18

R/W

FCRIM

0x0

Forward command FIFO ready interrupt mask

(FwCmdFifoRdyInterruptMask)

0

Mask the interrupt

1

Enable the interrupt

D17

R/W

I1M

0x0

Peripheral controller interrupt 1 mask

0

Mask the interrupt

1

Enable the interrupt

D16:11

N/A

Reserved

N/A

N/A

D10

R/C

RFRI

0x1

Reverse FIFO ready interrupt (RvFifoRdyInterrupt)

Asserted when the reverse FIFO can accept the number of
bytes specified in the reverse ready threshold bit in the
IEEE 1284 General Configuration register.

D09

N/A

Reserved

0x1

N/A

D08

N/A

Reserved

0x0

N/A

Bits

Access

Mnemonic

Reset

Description

Table 392: Interrupt Status and Control register

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