MCB2470 Keil, MCB2470 Datasheet - Page 29
MCB2470
Manufacturer Part Number
MCB2470
Description
BOARD EVAL NXP LPC247X SERIES
Manufacturer
Keil
Type
MCUr
Specifications of MCB2470
Contents
Board, Cable, CD
For Use With/related Products
LPC2478
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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NXP Semiconductors
LPC2478_1
Preliminary data sheet
7.5 Interrupt controller
The ARM processor core has two interrupt inputs called Interrupt Request (IRQ) and Fast
Interrupt Request (FIQ). The VIC takes 32 interrupt request inputs which can be
programmed as FIQ or vectored IRQ types. The programmable assignment scheme
means that priorities of interrupts from the various peripherals can be dynamically
assigned and adjusted.
FIQs have the highest priority. If more than one request is assigned to FIQ, the VIC ORs
the requests to produce the FIQ signal to the ARM processor. The fastest possible FIQ
latency is achieved when only one request is classified as FIQ, because then the FIQ
Fig 4. LPC2478 memory map
3.75 GB
4.0 GB
3.5 GB
3.0 GB
2.0 GB
1.0 GB
0.0 GB
Rev. 01 — 9 February 2007
(BOOT FLASH REMAPPED FROM ON-CHIP FLASH)
EXTERNAL STATIC AND DYNAMIC MEMORY
ON-CHIP NON-VOLATILE MEMORY
RESERVED ADDRESS SPACE
BOOT ROM AND BOOT FLASH
RESERVED ADDRESS SPACE
RESERVED ADDRESS SPACE
ON-CHIP STATIC RAM
SPECIAL REGISTERS
AHB PERIPHERALS
APB PERIPHERALS
Fast communication chip
002aac736
LPC2478
© NXP B.V. 2007. All rights reserved.
0xFFFF FFFF
0xF000 0000
0xE000 0000
0xC000 0000
0xDFFF FFFF
0x8000 0000
0x7FFF FFFF
0x4000 0000
0x3FFF FFFF
0x3FFF 8000
0x0000 0000
29 of 76
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