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LPC1766 bảng dữ liệu(PDF) 36 Page - NXP Semiconductors

tên linh kiện LPC1766
Giải thích chi tiết về linh kiện  32-bit ARM Cortex-M3 microcontroller; up to 512 kB flash and 64 kB SRAM with Ethernet, USB 2.0 Host/Device/OTG, CAN
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nhà sản xuất  NXP [NXP Semiconductors]
Trang chủ  http://www.nxp.com
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LPC1766 bảng dữ liệu(HTML) 36 Page - NXP Semiconductors

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LPC1769_68_67_66_65_64_4
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 04 — 1 February 2010
36 of 66
NXP Semiconductors
LPC1769/68/67/66/65/64
32-bit ARM Cortex-M3 microcontroller
7.30 System control
7.30.1 Reset
Reset has four sources on the LPC17xx: the RESET pin, the Watchdog reset, power-on
reset (POR), and the BrownOut Detection (BOD) circuit. The RESET pin is a Schmitt
trigger input pin. Assertion of chip Reset by any source, once the operating voltage attains
a usable level, starts the Wake-up timer (see description in Section 7.29.5), causing reset
to remain asserted until the external Reset is de-asserted, the oscillator is running, a fixed
number of clocks have passed, and the flash controller has completed its initialization.
When the internal Reset is removed, the processor begins executing at address 0, which
is initially the Reset vector mapped from the Boot Block. At that point, all of the processor
and peripheral registers have been initialized to predetermined values.
Fig 5.
Power distribution
REAL-TIME CLOCK
BACKUP REGISTERS
3.3 V REGULATOR
32 kHz
OSCILLATOR
POWER
SELECTOR
ULTRA-LOW
POWER
REGULATOR
RTC POWER DOMAIN
MAIN POWER DOMAIN
002aad978
RTCX1
VBAT
VDD(REG)(3V3)
RTCX2
VDD(3V3)
VSS
to memories,
peripherals,
oscillators,
PLLs
to core
to I/O pads
ADC
DAC
ADC POWER DOMAIN
VDDA
VREFP
VREFN
VSSA
LPC17xx



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