LPC1767FBD100,551 NXP Semiconductors, LPC1767FBD100,551 Datasheet - Page 571
![IC ARM CORTEX MCU 512K 100-LQFP](/photos/6/65/66516/568-100-lqfp_sot407-1_sml.jpg)
LPC1767FBD100,551
Manufacturer Part Number
LPC1767FBD100,551
Description
IC ARM CORTEX MCU 512K 100-LQFP
Manufacturer
NXP Semiconductors
Series
LPC17xxr
Datasheets
1.LPC1767FBD100551.pdf
(2 pages)
2.LPC1767FBD100551.pdf
(840 pages)
3.LPC1767FBD100551.pdf
(65 pages)
Specifications of LPC1767FBD100,551
Core Processor
ARM® Cortex-M3™
Core Size
32-Bit
Speed
100MHz
Connectivity
Ethernet, I²C, IrDA, Microwire, SPI, SSI, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, I²S, Motor Control PWM, POR, PWM, WDT
Number Of I /o
70
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 3.6 V
Data Converters
A/D 8x12b, D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-LQFP
Processor Series
LPC17
Core
ARM Cortex M3
3rd Party Development Tools
MDK-ARM, RL-ARM, ULINK2, MCB1760, MCB1760U, MCB1760UME
For Use With
622-1005 - USB IN-CIRCUIT PROG ARM7 LPC2K
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
568-4967
935289808551
935289808551
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LPC1767FBD100,551
Manufacturer:
NXP Semiconductors
Quantity:
10 000
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NXP Semiconductors
Table 523: Watchdog Mode register (WDMOD - address 0x4000 0000) bit description
Table 524. Watchdog operating modes selection
UM10360
User manual
Bit
0
1
2
3
31:4
WDEN
0
1
1
Symbol
WDEN
WDRESET WDRESET Watchdog reset enable bit (set -only). When 1, a watchdog timeout will
WDTOF
WDINT
-
WDRESET
X (0 or 1)
0
1
28.4.1 Watchdog Mode register (WDMOD - 0x4000 0000)
Description
WDEN Watchdog enable bit (set-only). When 1, the watchdog timer is running.
cause a chip reset.
WDTOF Watchdog time-out flag. Set when the watchdog timer times out, cleared by
software.
WDINT Watchdog interrupt flag (read-only, not clearable by software).
Reserved, user software should not write ones to reserved bits. The value read from a
reserved bit is not defined.
The WDMOD register controls the operation of the Watchdog as per the combination of
WDEN and RESET bits. Note that a watchdog feed must be performed before any
changes to the WDMOD register take effect.
Once the WDEN and/or WDRESET bits are set they can not be cleared by software. Both
flags are cleared by an external reset or a Watchdog timer underflow.
WDTOF The Watchdog time-out flag is set when the Watchdog times out. This flag is
cleared by software.
WDINT The Watchdog interrupt flag is set when the Watchdog times out. This flag is
cleared when any reset occurs. Once the watchdog interrupt is serviced, it can be
disabled in the NVIC or the watchdog interrupt request will be generated indefinitely. the
intent of the watchdog interrupt is to allow debugging watchdog activity without resetting
the device when the watchdog overflows.
Watchdog reset or interrupt will occur any time the watchdog is running and has an
operating clock source. Any clock source works in Sleep mode, and the IRC works in
Deep Sleep mode. If a watchdog interrupt occurs in Sleep or Deep Sleep mode, it will
wake up the device.
Mode of Operation
Debug/Operate without the Watchdog running.
Watchdog interrupt mode: debug with the Watchdog interrupt but no WDRESET enabled.
When this mode is selected, a watchdog counter underflow will set the WDINT flag and the
Watchdog interrupt request will be generated.
Watchdog reset mode: operate with the Watchdog interrupt and WDRESET enabled.
When this mode is selected, a watchdog counter underflow will reset the microcontroller. Although
the Watchdog interrupt is also enabled in this case (WDEN = 1) it will not be recognized since the
watchdog reset will clear the WDINT flag.
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 19 August 2010
Chapter 28: LPC17xx Watchdog Timer (WDT)
UM10360
© NXP B.V. 2010. All rights reserved.
Reset Value
0
0
0 (Only after
external reset)
0
NA
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