LPC1342FHN33,551 NXP Semiconductors, LPC1342FHN33,551 Datasheet - Page 54

• Manufacturer Part Number: LPC1342FHN33,551
• Description: IC MCU 32BIT 16KB FLASH 33HVQFN
• Manufacturer: NXP Semiconductors
• Series: LPC13xxr

Specifications of LPC1342FHN33,551

• Program Memory Type: FLASH
• Program Memory Size: 16KB (16K x 8)
• Package / Case: 33-VQFN Exposed Pad, 33-HVQFN, 33-SQFN, 33-DHVQFN
• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 72MHz
• Connectivity: I²C, Microwire, SPI, SSI, SSP, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 28
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: LPC13
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Data Ram Size: 4 KB
• Interface Type: I2C, UART
• Maximum Clock Frequency: 72 MHz
• Number Of Programmable I/os: 28
• Number Of Timers: 4
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Package: 33HVQFN EP
• Device Core: ARM Cortex M3
• Family Name: LPC1000
• Maximum Speed: 72 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 568-4946; 935289656551

NXP Semiconductors
5.5 Vector table remapping
UM10375
User manual
The Cortex-M3 incorporates a mechanism that allows remapping the interrupt vector table
to alternate locations in the memory map. This is controlled via the Vector Table Offset
Register (VTOR) contained in the Cortex-M3.
The vector table may be located anywhere within the bottom 1 GB of Cortex-M3 address
space. The vector table should be located on a 256 word (1024 byte) boundary to insure
alignment on LPC13xx family devices. Refer to the ARM Cortex-M3 User Guide for details
of the Vector Table Offset feature.
ARM describes bit 29 of the VTOR (TBLOFF) as selecting a memory region, either code
or SRAM. For simplicity, this bit can be thought as simply part of the address offset since
the split between the “code” space and the “SRAM” space occurs at the location
corresponding to bit 29 in a memory address.
Example:
To place the vector table at the beginning of the static RAM, starting at address 0x1000
0000, place the value 0x1000 0000 in the VTOR register. This indicates address 0x1000
0000 in the code space, since bit 29 of the VTOR equals 0.
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 7 July 2010
Chapter 5: LPC13xx Interrupt controller
UM10375
© NXP B.V. 2010. All rights reserved.
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