AT43USB325 datasheet(39/109 Pages) ATMEL

39 / 109 page

3355C–USB–4/05

AT43USB325

4.13.8

INTA/B/C/D Interrupt Sense Control Register – ISCR

• Bit 7,6 – ISC71, ISC70: External Interrupt D Sense Control Bits

ISC71 and ISC70 controls the level and sense of the input at the INTD pin as defined below:

ISC71 ISC70 Description

Low level of INTD

Reserved

Falling edge of INTD

Rising edge of INTD

• Bit 5,4 – ISC61, ISC60: External Interrupt C Sense Control Bits

ISC71 and ISC70 controls the level and sense of the input at the INTC pin as defined below:

ISC61 ISC60 Description

Low level of INTC

Reserved

Falling edge of INTC

Rising edge of INTC

• Bit 3,2 – ISC51, ISC40: External Interrupt B Sense Control Bits

ISC51 and ISC50 controls the level and sense of the input at the INTB pin as defined below:

ISC51 ISC50 Description

Low level of INTB

Reserved

Falling edge of INTB

Rising edge of INTB

• Bit 1,0 – ISC41, ISC40: External Interrupt A Sense Control Bits

ISC41 and ISC40 controls the level and sense of the input at the INTA pin as defined below:

ISC41 ISC40 Description

Low level of INTA

Reserved

Falling edge of INTA

Rising edge of INTA

Bit

$1FF1

ISC71

ISC70

ISC61

ISC60

ISC51

ISC50

ISC41

ISC40

ISCR

Read/Write

R/W

Initial Value

AT43USB325 Datenblatt(PDF) 39 Page - ATMEL Corporation

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