LPC1767FBD100,551 NXP Semiconductors, LPC1767FBD100,551 Datasheet - Page 742

• 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
Fig 146. Bit-band mapping
34.3.2.5.1 Directly accessing an alias region
34.3.2.5.2 Directly accessing a bit-band region
7
7
0x23FFFFFC
0x2200001C
6
6
5
5
0x200FFFFF
0x20000003
Writing to a word in the alias region updates a single bit in the bit-band region.
Bit[0] of the value written to a word in the alias region determines the value written to the
targeted bit in the bit-band region. Writing a value with bit[0] set to 1 writes a 1 to the
bit-band bit, and writing a value with bit[0] set to 0 writes a 0 to the bit-band bit.
Bits[31:1] of the alias word have no effect on the bit-band bit. Writing 0x01 has the same
effect as writing 0xFF. Writing 0x00 has the same effect as writing 0x0E.
Reading a word in the alias region:
Section 34.3.2.3
bit-band regions.
4
4
•
•
•
•
•
3
3
0x23FFFFF8
0x22000018
The alias word at 0x23FFFFFC maps to bit[7] of the bit-band byte at 0x200FFFFF:
0x23FFFFFC = 0x22000000 + (0xFFFFF*32) + (7*4).
The alias word at 0x22000000 maps to bit[0] of the bit-band byte at 0x20000000:
0x22000000 = 0x22000000 + (0*32) + (0 *4).
The alias word at 0x2200001C maps to bit[7] of the bit-band byte at 0x20000000:
0x2200001C = 0x22000000+ (0*32) + (7*4).
0x00000000 indicates that the targeted bit in the bit-band region is set to zero
0x00000001 indicates that the targeted bit in the bit-band region is set to 1
2
2
1
1
0
0
7
7
0x23FFFFF4
0x22000014
All information provided in this document is subject to legal disclaimers.
6
6
describes the behavior of direct byte, halfword, or word accesses to the
5
5
0x200FFFFE
0x20000002
4
4
1MB SRAM bit-band region
Rev. 2 — 19 August 2010
3
3
0x23FFFFF0
0x22000010
32MB alias region
2
2
1
1
0
0
7
7
0x23FFFFEC
0x2200000C
6
6
5
5
0x200FFFFD
0x20000001
Chapter 34: Appendix: Cortex-M3 user guide
4
4
3
3
0x23FFFFE8
0x22000008
2
2
1
1
0
0
7
7
0x23FFFFE4
0x22000004
6
6
5
5
0x200FFFFC
0x20000000
4
4
3
3
0x23FFFFE0
0x22000000
2
2
UM10360
1
1
© NXP B.V. 2010. All rights reserved.
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