LPC1767FBD100,551 NXP Semiconductors, LPC1767FBD100,551 Datasheet - Page 69

• Manufacturer Part Number: LPC1767FBD100,551
• Description: IC ARM CORTEX MCU 512K 100-LQFP
• Manufacturer: NXP Semiconductors
• Series: LPC17xxr

Specifications of LPC1767FBD100,551

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 100MHz
• Connectivity: Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Data Converters: A/D 8x12b, D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Processor Series: LPC17
• Core: ARM Cortex M3
• 3rd Party Development Tools: MDK-ARM, RL-ARM, ULINK2, MCB1760, MCB1760U, MCB1760UME
• For Use With: 622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details
• Other names: 568-4967; 935289808551

NXP Semiconductors
5.3 Register description
UM10360
User manual
5.2.2 Flash programming Issues
Since the flash memory does not allow accesses during programming and erase
operations, it is necessary for the flash accelerator to force the CPU to wait if a memory
access to a flash address is requested while the flash memory is busy with a
programming operation. Under some conditions, this delay could result in a Watchdog
time-out. The user will need to be aware of this possibility and take steps to insure that an
unwanted Watchdog reset does not cause a system failure while programming or erasing
the flash memory.
In order to preclude the possibility of stale data being read from the flash memory, the
LPC17xx flash accelerator buffers are automatically invalidated at the beginning of any
flash programming or erase operation. Any subsequent read from a flash address will
cause a new fetch to be initiated after the flash operation has completed.
The flash accelerator is controlled by the register shown in
descriptions follow.
Table 48.
[1]
Name
FLASHCFG
Reset Value reflects the data stored in defined bits only. It does not include reserved bits content.
Summary of flash accelerator registers
Description
Flash Accelerator Configuration Register.
Controls flash access timing. See
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 19 August 2010
Table
Chapter 5: LPC17xx Flash accelerator
49.
Access Reset
R/W
Table
48. More detailed
value
0x303A 0x400F C000
UM10360
© NXP B.V. 2010. All rights reserved.
[1]
Address
69 of 840