LPC2420FBD208-S NXP Semiconductors, LPC2420FBD208-S Datasheet - Page 27
LPC2420FBD208-S
Manufacturer Part Number
LPC2420FBD208-S
Description
MCU 16-Bit/32-Bit LPC2000 ARM7TDMI-S RISC ROMLess 3.3V 208-Pin LQFP Tray
Manufacturer
NXP Semiconductors
Datasheet
1.LPC2460FBD208551.pdf
(79 pages)
Specifications of LPC2420FBD208-S
Package
208LQFP
Device Core
ARM7TDMI-S
Family Name
LPC2000
Maximum Speed
72 MHz
Ram Size
82 KB
Operating Supply Voltage
3.3 V
Data Bus Width
16|32 Bit
Program Memory Type
ROMLess
Number Of Programmable I/os
160
Interface Type
I2C/I2S/SPI/SSP/UART/USB
On-chip Adc
8-chx10-bit
On-chip Dac
1-chx10-bit
Operating Temperature
-40 to 85 °C
Number Of Timers
4
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NXP Semiconductors
LPC2420_60_5
Preliminary data sheet
7.4 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. LPC2420/2460 memory map
3.75 GB
4.0 GB
3.5 GB
2.0 GB
1.0 GB
0.0 GB
Rev. 05 — 24 February 2010
EXTERNAL STATIC AND DYNAMIC MEMORY
RESERVED ADDRESS SPACE
RESERVED ADDRESS SPACE
ON-CHIP STATIC RAM
SPECIAL REGISTERS
AHB PERIPHERALS
APB PERIPHERALS
BOOT ROM
Flashless 16-bit/32-bit microcontroller
LPC2420/2460
002aad316
© NXP B.V. 2010. All rights reserved.
0xFFFF FFFF
0xF000 0000
0xE000 0000
0x8000 0000
0x7FFF FFFF
0x4000 0000
0x3FFF FFFF
0x3FFF 8000
0x0000 0000
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