DSP56857 datasheet(540/662 Pages) FREESCALE

No. de pieza	DSP56857

Descripción Electrónicos	Digitial Signal Controller

PDF	662 Pages

Scroll/Zoom	100%

Fabricante Electrónico	FREESCALE [Freescale Semiconductor, Inc]

Página de inicio	http://www.freescale.com

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540 / 662 page

Application:

Date:

Programmer:

Sheet

5685X Digital Signal Controller User Manual, Rev. 4

B-38

Freescale Semiconductor

18 of 24

ITCN

Fast Interrupt Match Register 0 (FIM0)

Bits

Name

Description

6 - 0

FIM0

Fast Interrupt Match 0

This value is used to declare which two IRQs will be Fast Interrupts. Fast Interrupt vector directly

to a service routine based on values in the Fast Interrupt Vector Address registers without having

to go to a jump table first. IRQs used as fast interrupts must be set to priority level two. Unexpected

results will occur if a fast interrupt vector is set to any other priority. Fast interrupts automatically

become the highest priority level two interrupts regardless of their actual location in the interrupt

table prior to being declared fast interrupts. Fast Interrupt 0 has priority over Fast Interrupt 1.

Fast Interrupt Match

$1FFF20 + $A

Bits

Read

FAST INTERRUPT 0

Write

Reset

000

0000

denotes Reserved Bits

DSP56857 Datasheet(PDF) 540 Page - Freescale Semiconductor, Inc