OM11035 NXP Semiconductors, OM11035 Datasheet - Page 39
OM11035
Manufacturer Part Number
OM11035
Description
KIT EVAL LPC1768 CR
Manufacturer
NXP Semiconductors
Type
MCUr
Datasheet
1.OM11043.pdf
(79 pages)
Specifications of OM11035
Contents
Board and software
For Use With/related Products
LPC1768
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
568-4815
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NXP Semiconductors
LPC1769_68_67_66_65_64_63
Product data sheet
7.30.1 Reset
7.30 System control
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, causes the RSTOUT pin to go LOW and starts the wake-up timer (see
description in
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. Once reset is
de-asserted, or, in case of a BOD-triggered reset, once the voltage rises above the BOD
threshold, the RSTOUT pin goes HIGH.
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 6.
Power distribution
V
DD(REG)(3V3)
Section
All information provided in this document is subject to legal disclaimers.
V
VREFN
DD(3V3)
RTCX1
RTCX2
VREFP
VBAT
V
V
V
DDA
SSA
SS
7.29.5). The wake-up timer ensures that reset remains asserted
Rev. 6.01 — 11 March 2011
LPC17xx
LPC1769/68/67/66/65/64/63
RTC POWER DOMAIN
ADC POWER DOMAIN
MAIN POWER DOMAIN
OSCILLATOR
SELECTOR
to I/O pads
POWER
32 kHz
REGULATOR
32-bit ARM Cortex-M3 microcontroller
ULTRA LOW-POWER
REGULATOR
DAC
ADC
BACKUP REGISTERS
REAL-TIME CLOCK
to core
to memories,
peripherals,
oscillators,
PLLs
002aad978
© NXP B.V. 2011. All rights reserved.
39 of 79
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