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Rainbow Electronics AT76C551 User Manual

Page 40

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40

AT76C551

1612D–08/01

• Bits 23..0 – 3wb_, Data[23:0]

24-bit data word to be send on the 3-wire bus. MSB is sent first.

Note:

Default Value: 00000000 hex

IntStatus

addr: 600054 hex

R

32 bits

• Bits 31..13 – Reserved

• Bit 12 – TxFifoAlmEmpty_IntStatus

TX FIFO almost empty interrupt status.

• Bit 11 – RxFifoAlmFull_IntStatus

RX FIFO almost full interrupt.

• Bit 10 – GenPurpTim_ IntStatus

General purpose compare timer interrupt.

• Bit 9 – TxAcCodeComplete_IntStatus

RX/TX start compare timer interrupt enable.

• Bit 8 – RxTxStart_ IntStatus

RX/TX start compare timer interrupt.

• Bit 7 – TxPktComplete_IntStatus

TX packet completion interrupt.

• Bit 6 – RxCorrelTrig_ IntStatus

Correlator trigger interrupt.

• Bit 5 – RxHecFail_IntStatus

HEC fail interrupt.

• Bit 4 – RxCrcFail_ IntStatus

CRC fail interrupt.

• Bit 3 – RxFecFail_ IntStatus

FEC fail interrupt.

• Bit 2 – RxPktHeaderRdy_IntStatus

RX packet header arrival interrupt.

• Bit 1 – RxPayHeaderRdy_IntStatus

RX payload header arrival interrupt.

• Bit 0 – RxPayloadRdy_IntStatus

RX payload completion interrupt.

Note:

Default Value: 00000000 hex

IntMask

addr: 600058 hex

R/W

32 bits

• Bits 31..13 – Reserved

• Bit 12 – TxFifoAlmEmpty_IntEnable

TX FIFO almost empty interrupt enable.