LPC1857FET256,551 NXP Semiconductors, LPC1857FET256,551 Datasheet - Page 698

• Manufacturer Part Number: LPC1857FET256,551
• Description: IC MCU 32BIT 1MB FLASH 256LBGA
• Manufacturer: NXP Semiconductors
• Series: LPC18xxr

Specifications of LPC1857FET256,551

• Core Processor: ARM® Cortex-M3™
• Core Size: 32-Bit
• Speed: 150MHz
• Connectivity: CAN, EBI/EMI, Ethernet, I²C, Microwire, SD/MMC, SPI, SSI, SSP, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, I²S, LCD, Motor Control PWM, POR, PWM, WDT
• Number Of I /o: 80
• Program Memory Size: 1MB (1M x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 136K x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 1x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-LBGA
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

NXP Semiconductors
<Document ID>
User manual
Fig 84. Early Watchdog Feed with Windowed Mode Enabled
Fig 85. Correct Watchdog Feed with Windowed Mode Enabled
Fig 86. Watchdog Warning Interrupt
Correct Feed
WDCLK / 4
WDCLK / 4
Conditions:
WDWINDOW = 0x1200
WDWARNINT = 0x3FF
WDTC
Conditions:
WDWINDOW = 0x1200
WDWARNINT = 0x3FF
WDTC
Early Feed
WDCLK / 4
Watchdog
Watchdog
Conditions:
WDWINDOW = 0x1200
WDWARNINT = 0x3FF
WDTC
Watchdog
Watchdog
Watchdog
Watchdog
Interrupt
Counter
Counter
Counter
Reset
Event
Reset
Event
= 0x2000
= 0x2000
= 0x2000
125A
0403
1201
1259
0402
1200
All information provided in this document is subject to legal disclaimers.
1258
0401
11FF
Rev. 00.13 — 20 July 2011
1257
0400
11FE
Chapter 30: LPC18xx Windowed Watchdog timer (WWDT)
03FF
11FD
03FE
11FC
03FD
2000
03FC
1FFF
03FB
1FFE
03FA 03F9
1FFD 1FFC
UM10430
© NXP B.V. 2011. All rights reserved.
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