LPC1759FBD80,551 NXP Semiconductors, LPC1759FBD80,551 Datasheet - Page 51
LPC1759FBD80,551
Manufacturer Part Number
LPC1759FBD80,551
Description
IC ARM CORTEX MCU 512K 80-LQFP
Manufacturer
NXP Semiconductors
Series
LPC17xxr
Datasheets
1.LPC1751FBD80551.pdf
(74 pages)
2.LPC1767FBD100551.pdf
(2 pages)
3.LPC1767FBD100551.pdf
(840 pages)
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
935290523551
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UM10360
User manual
4.6.6 PLL1 Feed register (PLL1FEED - 0x400F C0AC)
4.6.7 PLL1 and Power-down mode
A correct feed sequence must be written to the PLL1FEED register in order for changes to
the PLL1CON and PLL1CFG registers to take effect. The feed sequence is:
The two writes must be in the correct sequence, and there must be no other register
access in the same address space (0x400F C000 to 0x400F FFFF) between them.
Because of this, it may be necessary to disable interrupts for the duration of the PLL feed
operation, if there is a possibility that an interrupt service routine could write to another
register in that space. If either of the feed values is incorrect, or one of the previously
mentioned conditions is not met, any changes to the PLL1CON or PLL1CFG register will
not become effective.
Table 34.
Power-down mode automatically turns off and disconnects activated PLL(s). Wake-up
from Power-down mode does not automatically restore PLL settings, this must be done in
software. Typically, a routine to activate the PLL, wait for lock, and then connect the PLL
can be called at the beginning of any interrupt service routine that might be called due to
the wake-up. It is important not to attempt to restart a PLL by simply feeding it when
execution resumes after a wake-up from Power-down mode. This would enable and
connect the PLL at the same time, before PLL lock is established.
If activity on the USB data lines is not selected to wake the microcontroller from
Power-down mode (see
the Main PLL (PLL0) and the USB PLL (PLL1) will be automatically be turned off and
disconnected when Power-down mode is invoked, as described above. However, if the
USB activity interrupt is enabled and USB_NEED_CLK = 1 (see
description of USB_NEED_CLK), it is not possible to go into Power-down mode and any
attempt to set the PD bit will fail, leaving the PLLs in the current state.
Bit
7:0
31:8
1. Write the value 0xAA to PLL1FEED.
2. Write the value 0x55 to PLL1FEED.
Symbol
PLL1FEED
-
PLL1 Feed register (PLL1FEED - address 0x400F C0AC) bit description
All information provided in this document is subject to legal disclaimers.
Description
The PLL1 feed sequence must be written to this register in order for
PLL1 configuration and control register changes to take effect.
Reserved, user software should not write ones to reserved bits. The
value read from a reserved bit is not defined.
Rev. 2 — 19 August 2010
Section 4.8.8
Chapter 4: LPC17xx Clocking and power control
for details of wake up from reduced modes), both
Table 191
UM10360
© NXP B.V. 2010. All rights reserved.
for a
51 of 840
Reset
value
0x00
NA
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