LPC1759FBD80,551 NXP Semiconductors, LPC1759FBD80,551 Datasheet - Page 543

• Manufacturer Part Number: LPC1759FBD80,551
• Description: IC ARM CORTEX MCU 512K 80-LQFP
• Manufacturer: NXP Semiconductors
• Series: LPC17xxr

Specifications of LPC1759FBD80,551

• Program Memory Type: FLASH
• Program Memory Size: 512KB (512K x 8)
• Package / Case: 80-LQFP
• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 120MHz
• Connectivity: CAN, I²C, IrDA, Microwire, SPI, SSI, SSP, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 52
• Ram Size: 64K x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 3.6 V
• Data Converters: A/D 6x12b, D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: LPC17
• Core: ARM Cortex M3
• Data Bus Width: 32 bit
• Data Ram Size: 64 KB
• Interface Type: Ethernet, USB, OTG, CAN
• Maximum Clock Frequency: 120 MHz
• Number Of Programmable I/os: 52
• 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: 12 bit, 6 Channel
• On-chip Dac: 10 bit
• Package: 80LQFP
• Device Core: ARM Cortex M3
• Family Name: LPC17xx
• Maximum Speed: 120 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: 568-4968; 935290523551

26.1 Basic configuration
26.2 Features
26.3 Introduction
UM10360
User manual
The QEI is configured using the following registers:
This Quadrature Encoder Interface (QEI) has the following features:
A quadrature encoder, also known as a 2-channel incremental encoder, converts angular
displacement into two pulse signals. By monitoring both the number of pulses and the
relative phase of the two signals, you can track the position, direction of rotation, and
velocity. In addition, a third channel, or index signal, can be used to reset the position
counter. This quadrature encoder interface module decodes the digital pulses from a
quadrature encoder wheel to integrate position over time and determine direction of
rotation. In addition, it can capture the velocity of the encoder wheel.
1. Power: In the PCONP register
2. Peripheral clock: In the PCLKSEL0 register
3. Pins: Select QEI pins through the PINSEL registers. Select pin modes for port pins
4. Interrupts: See
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UM10360
Chapter 26: LPC17xx Quadrature Encoder Interface (QEI)
Rev. 2 — 19 August 2010
Remark: On reset, the QEI is disabled (PCQEI = 0).
with QEI functions through the PINMODE registers
appropriate Interrupt Set Enable register.
tracks encoder position.
increments/ decrements depending on direction.
programmable for 2X or 4X position counting.
velocity capture using built-in timer.
velocity compare function with less than interrupt.
uses 32-bit registers for position and velocity.
three position compare registers with interrupts.
index counter for revolution counting.
index compare register with interrupts.
can combine index and position interrupts to produce an interrupt for whole and partial
revolution displacement.
digital filter with programmable delays for encoder input signals.
can accept decoded signal inputs (clock and direction).
All information provided in this document is subject to legal disclaimers.
Section
Rev. 2 — 19 August 2010
26.6.4. The QEI interrupt is enabled in the NVIC using the
(Table
46), set bit PCQEI.
(Table
40), select PCLK_QEI.
(Section
8.5).
© NXP B.V. 2010. All rights reserved.
User manual
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