MFC2000 datasheet(332/426 Pages) ETC

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MFC2000 Multifunctional Peripheral Controller 2000

Hardware Description

17-10

Conexant

100723A

Interrupt Status Register

Address

Bit 15

Bit 14

Bit 13

Bit 12

Bit 11

Bit 10

Bit 9

Bit 8

Default

Parallel Port Interrupt

Status

(PIOIRQSTS)

$01FF820F

(Not Used)

DMARIRQ

DMAFIRQ

HTE

RDX

IVT

CRX

DRX

Rst. Value

x0000000b

Read Value

00h

Address

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Default

Parallel Port Interrupt

Status

(PIOIRQSTS)

$01FF820E

INIL

INIH

AFDL

AFDH

STRL

STRH

SINL

SINH

Rst. Value

00h

Read Value

00h

SINH

SLCTINn high edge interrupt.

SINL

SLCTINn low edge interrupt.

STRH

STROBEn high edge interrupt.

STRL

STROBEn low edge interrupt.

AFDH

AUTOFDn high edge interrupt.

AFDL

AUTOFDn low edge interrupt.

INIH

INITn high edge interrupt.

INIL

INITn low edge interrupt.

DRX

data received interrupt.

CRX

command received interrupt.

IVT

invalid transition interrupt.

RDX

rev data sent interrupt.

THE

host timeout interrupt.

FDM AIRQ

Forward transfer DMA end of block interrupt

RDM AIRQ

Reverse transfer DMA end of block interrupt

Clearing any interrupt requires writing a 1 to the corresponding bit in

the interrupt status register.

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