OM13013,598 NXP Semiconductors, OM13013,598 Datasheet - Page 285
OM13013,598
Manufacturer Part Number
OM13013,598
Description
BOARD DEMO IAR LPC1227 JLINKLITE
Manufacturer
NXP Semiconductors
Series
-r
Specifications of OM13013,598
Design Resources
LPC122x-SK Brd Schematic
Processor To Be Evaluated
LPC1227
Processor Series
LPC122x
Data Bus Width
32 bit
Interface Type
UART, SSP, SPI, I2C
Cpu Core
ARM Cortex-M0
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
3 V to 3.6 V
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
568-6885
- Current page: 285 of 442
- Download datasheet (3Mb)
NXP Semiconductors
17.8 Block diagram
UM10441
User manual
17.7.6 Watchdog Timer Warning Interrupt register
17.7.7 Watchdog Timer Window register
The WDWARNINT register determines the watchdog timer counter value that will
generate a watchdog interrupt. When the watchdog timer counter matches the value
defined by WDWARNINT, an interrupt will be generated after the subsequent WDCLK.
A match of the watchdog timer counter to WDWARNINT occurs when the bottom 10 bits
of the counter have the same value as the 10 bits of WARNINT, and the remaining upper
bits of the counter are all 0. This gives a maximum time of 1,023 watchdog timer counts
(4,096 watchdog clocks) for the interrupt to occur prior to a watchdog event. If WARNINT
is set to 0, the interrupt will occur at the same time as the watchdog event.
Table 270. Watchdog Timer Warning Interrupt register (WARNINT - 0x4000 4014) bit
The WDWINDOW register determines the highest WDTV value allowed when a watchdog
feed is performed. If a feed valid sequence completes prior to WDTV reaching the value in
WDWINDOW, a watchdog event will occur.
WDWINDOW resets to the maximum possible WDTV value, so windowing is not in effect.
Values of WDWINDOW below 0x100 will make it impossible to ever feed the watchdog
successfully.
Table 271. Watchdog Timer Window register (WINDOW - 0x4000 4018) bit description
The block diagram of the Watchdog is shown below in the
logic (PCLK - WDCLK) is not shown in the block diagram.
Bit
9:0
31:10
Bit
23:0
31:24
Symbol
WARNINT
-
Symbol
WINDOW
-
description
All information provided in this document is subject to legal disclaimers.
Description
Watchdog warning interrupt compare value.
Reserved, user software should not write ones to reserved
bits. The value read from a reserved bit is not defined.
Description
Watchdog window value.
Reserved, user software should not write ones to reserved
bits. The value read from a reserved bit is not defined.
Rev. 1 — 15 February 2011
Chapter 17: LPC122x Windowed Watchdog Timer (WWDT)
Figure
46. The synchronization
UM10441
© NXP B.V. 2011. All rights reserved.
Reset value
0
NA
Reset value
0xFF FFFF
NA
285 of 442
Related parts for OM13013,598
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
NXP Semiconductors designed the LPC2420/2460 microcontroller around a 16-bit/32-bitARM7TDMI-S CPU core with real-time debug interfaces that include both JTAG andembedded trace
Manufacturer:
NXP Semiconductors
Datasheet:
Part Number:
Description:
NXP Semiconductors designed the LPC2458 microcontroller around a 16-bit/32-bitARM7TDMI-S CPU core with real-time debug interfaces that include both JTAG andembedded trace
Manufacturer:
NXP Semiconductors
Datasheet:
Part Number:
Description:
NXP Semiconductors designed the LPC2468 microcontroller around a 16-bit/32-bitARM7TDMI-S CPU core with real-time debug interfaces that include both JTAG andembedded trace
Manufacturer:
NXP Semiconductors
Datasheet:
Part Number:
Description:
NXP Semiconductors designed the LPC2470 microcontroller, powered by theARM7TDMI-S core, to be a highly integrated microcontroller for a wide range ofapplications that require advanced communications and high quality graphic displays
Manufacturer:
NXP Semiconductors
Datasheet:
Part Number:
Description:
NXP Semiconductors designed the LPC2478 microcontroller, powered by theARM7TDMI-S core, to be a highly integrated microcontroller for a wide range ofapplications that require advanced communications and high quality graphic displays
Manufacturer:
NXP Semiconductors
Datasheet:
Part Number:
Description:
The Philips Semiconductors XA (eXtended Architecture) family of 16-bit single-chip microcontrollers is powerful enough to easily handle the requirements of high performance embedded applications, yet inexpensive enough to compete in the market for hi
Manufacturer:
NXP Semiconductors
Datasheet:
Part Number:
Description:
The Philips Semiconductors XA (eXtended Architecture) family of 16-bit single-chip microcontrollers is powerful enough to easily handle the requirements of high performance embedded applications, yet inexpensive enough to compete in the market for hi
Manufacturer:
NXP Semiconductors
Datasheet:
Part Number:
Description:
The XA-S3 device is a member of Philips Semiconductors? XA(eXtended Architecture) family of high performance 16-bitsingle-chip microcontrollers
Manufacturer:
NXP Semiconductors
Datasheet:
Part Number:
Description:
The NXP BlueStreak LH75401/LH75411 family consists of two low-cost 16/32-bit System-on-Chip (SoC) devices
Manufacturer:
NXP Semiconductors
Datasheet:
Part Number:
Description:
The NXP LPC3130/3131 combine an 180 MHz ARM926EJ-S CPU core, high-speed USB2
Manufacturer:
NXP Semiconductors
Datasheet:
Part Number:
Description:
The NXP LPC3141 combine a 270 MHz ARM926EJ-S CPU core, High-speed USB 2
Manufacturer:
NXP Semiconductors
Part Number:
Description:
The NXP LPC3143 combine a 270 MHz ARM926EJ-S CPU core, High-speed USB 2
Manufacturer:
NXP Semiconductors
Part Number:
Description:
The NXP LPC3152 combines an 180 MHz ARM926EJ-S CPU core, High-speed USB 2
Manufacturer:
NXP Semiconductors
Part Number:
Description:
The NXP LPC3154 combines an 180 MHz ARM926EJ-S CPU core, High-speed USB 2
Manufacturer:
NXP Semiconductors
Part Number:
Description:
Standard level N-channel enhancement mode Field-Effect Transistor (FET) in a plastic package using NXP High-Performance Automotive (HPA) TrenchMOS technology
Manufacturer:
NXP Semiconductors
Datasheet: