LPC1767FBD100,551 NXP Semiconductors, LPC1767FBD100,551 Datasheet - Page 782

• 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
UM10360
User manual
34.4.3.15 System control block design hints and tips
Table 673. BFAR bit assignments
When an unaligned access faults the address in the BFAR is the one requested by the
instruction, even if it is not the address of the fault.
Flags in the BFSR indicate the cause of the fault, and whether the value in the BFAR is
valid. See
Ensure software uses aligned accesses of the correct size to access the system control
block registers:
The processor does not support unaligned accesses to system control block registers.
In a fault handler. to determine the true faulting address:
Software must follow this sequence because another higher priority exception might
change the MMFAR or BFAR value. For example, if a higher priority handler preempts the
current fault handler, the other fault might change the MMFAR or BFAR value.
Bits
[31:0]
1. Read and save the MMFAR or BFAR value.
2. Read the MMARVALID bit in the MMFSR, or the BFARVALID bit in the BFSR. The
•
•
except for the CFSR and SHPR1-SHPR3, it must use aligned word accesses
for the CFSR and SHPR1-SHPR3 it can use byte or aligned halfword or word
accesses.
MMFAR or BFAR address is valid only if this bit is 1.
Name
ADDRESS
Table
All information provided in this document is subject to legal disclaimers.
669.
Rev. 2 — 19 August 2010
Function
When the BFARVALID bit of the BFSR is set to 1, this field holds the
address of the location that generated the bus fault
Chapter 34: Appendix: Cortex-M3 user guide
UM10360
© NXP B.V. 2010. All rights reserved.
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