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LPC2114 View Datasheet(PDF) - Philips Electronics

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LPC2114 Datasheet PDF : 34 Pages
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Philips Semiconductors
4.0 GB
3.75 GB
3.5 GB
3.0 GB
LPC2114/LPC2124
Single-chip 16/32-bit microcontrollers
AHB PERIPHERALS
VPB PERIPHERALS
RESERVED ADDRESS SPACE
0xFFFF FFFF
0xF000 0000
0xEFFF FFFF
0xE000 0000
0xDFFF FFFF
0xC000 0000
9397 750 13145
Product data
2.0 GB
1.0 GB
BOOT BLOCK (RE-MAPPED FROM
ON-CHIP FLASH MEMORY
RESERVED ADDRESS SPACE
16 KBYTE ON-CHIP STATIC RAM
0x8000 0000
0x7FFF FFFF
0x7FFF E000
0x7FFF DFFF
0x4004 0000
0x4000 3FFF
0x4000 0000
0x3FFF FFFF
RESERVED ADDRESS SPACE
0.0 GB
256 KBYTE ON-CHIP FLASH MEMORY (LPC2124)
128 KBYTE ON-CHIP FLASH MEMORY (LPC2114)
0x0004 0000
0x0003 FFFF
0x0002 0000
0x0001 FFFF
0x0000 0000
002aaa661
Fig 3. LPC2114/LPC2124 memory map.
6.5 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.
Rev. 03 — 22 December 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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