參數(shù)資料
型號： LPC2290
廠商： NXP Semiconductors N.V.
英文描述： 16/32-bit ARM microcontrollers with CAN, 10-bit ADC and external memory interface
中文描述： 與CAN，16/32位ARM微控制器的10位模數(shù)轉(zhuǎn)換器和外部存儲器接口
文件頁數(shù)： 12/41頁
文件大?。?/td> 185K
代理商： LPC2290
Philips Semiconductors
LPC2290
16/32-bit ARM microcontrollers with external memory interface
Preliminary data
Rev. 01 — 09 February 2004
12 of 41
9397 750 12874
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
6.4 Interrupt controller
The Vectored Interrupt Controller (VIC) accepts all of the interrupt request inputs and
categorizes them as FIQ, vectored IRQ, and non-vectored IRQ as defined by
programmable settings. The programmable assignment scheme means that priorities
of interrupts from the various peripherals can be dynamically assigned and adjusted.
Fast Interrupt reQuest (FIQ) has the highest priority. If more than one request is
assigned to FIQ, the VIC combines 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 service routine can simply start dealing
with that device. But if more than one request is assigned to the FIQ class, the FIQ
service routine can read a word from the VIC that identifies which FIQ source(s) is
(are) requesting an interrupt.
Fig 3.
LPC2290 memory map.
AHB PERIPHERALS
VPB PERIPHERALS
RESERVED ADDRESS SPACE
RESERVED ADDRESS SPACE
16 KBYTE ON-CHIP STATIC RAM
RESERVED ADDRESS SPACE
0xFFFF FFFF
0xF000 0000
0xEFFF FFFF
0xE000 0000
0xDFFF FFFF
0x4001 0000
0x4000 3FFF
0x4000 0000
0x3FFF FFFF
4.0 GB
3.75 GB
3.5 GB
3.0 GB
2.0 GB
1.0 GB
0.0 GB
0x0000 0000
002aaa798
0x8400 0000
0x83FF FFFF
0x7FFF FFFF
EXTERNAL MEMORY BANK3
0x8300 0000
0x82FF FFFF
EXTERNAL MEMORY BANK2
0x8200 0000
0x81FF FFFF
EXTERNAL MEMORY BANK1
0x8100 0000
0x80FF FFFF
EXTERNAL MEMORY BANK0
0x8000 0000
BOOT BLOCK (RE-MAPPED FROM
ON-CHIP ROM MEMORY
0x7FFF E000
0x7FFF DFFF
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