UM10375 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2011. All rights reserved.
User manual Rev. 3 — 14 June 2011 311 of 368
NXP Semiconductors
UM10375
Chapter 19: LPC13xx Windowed WatchDog Timer (WWDT)
Fig 61. Correct Watchdog Feed with Windowed Mode Enabled
Correct Feed
Event
1201 11FF1200
WDCLK / 4
Watchdog
Counter
Watchdog
Reset
11FC11FD 2000 1FFE1FFF11FE 1FFD 1FFC
Conditions:
WDWINDOW = 0x1200
WDWARNINT = 0x3FF
WDTC = 0x2000
Fig 62. Watchdog Warning Interrupt
Watchdog
Interrupt
0403 04010402
WDCLK / 4
Watchdog
Counter
03FE03FF 03FD 03FB03FC0400 03FA 03F9
Conditions:
WINDOW = 0x1200
WARNINT = 0x3FF
TC = 0x2000
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