LPC1759FBD80,551 NXP Semiconductors, LPC1759FBD80,551 Datasheet - Page 504

• 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

23.1 Basic configuration
23.2 Features
23.3 Description
23.4 Operation
UM10360
User manual
The System Tick Timer is configured using the following registers:
The System Tick Timer is an integral part of the Cortex-M3. The System Tick Timer is
intended to generate a fixed 10 millisecond interrupt for use by an operating system or
other system management software.
Since the System Tick Timer is a part of the Cortex-M3, it facilitates porting of software by
providing a standard timer that is available on Cortex-M3 based devices.
Refer to the Cortex-M3 User Guide appended to this manual
System Tick Timer operation.
The System Tick Timer is a 24-bit timer that counts down to zero and generates an
interrupt. The intent is to provide a fixed 10 millisecond time interval between interrupts.
The System Tick Timer may be clocked either from the CPU clock or from the external pin
STCLK. The STCLK function shares pin P3.26 with other functions, and must be selected
for use as the System Tick Timer clock. In order to generate recurring interrupts at a
specific interval, the STRELOAD register must be initialized with the correct value for the
desired interval. A default value is provided in the STCALIB register and may be changed
by software. The default value gives a 10 millisecond interrupt rate if the CPU clock is set
to 100 MHz.
The block diagram of the System Tick Timer is shown below in the
1. Clock Source: Select either the internal CCLK or external STCLK (P3.26) clock as the
2. Pins: If STCLK (P3.26) was selected as clock source enable the STCLK pin function
3. Interrupt: The System Tick Timer Interrupt is enabled in the NVIC using the
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UM10360
Chapter 23: LPC17xx System Tick Timer
Rev. 2 — 19 August 2010
source in the STCTRL register.
in the PINMODE register
appropriate Interrupt Set Enable register.
Times intervals of 10 milliseconds
Dedicated exception vector
Can be clocked internally by the CPU clock or by a clock input from a pin (STCLK)
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 19 August 2010
(Section
8.5).
(Section
Figure
34.4.4) for details of
© NXP B.V. 2010. All rights reserved.
118.
User manual
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