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UM10503
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User manual
Rev. 1.3 — 6 July 2012
943 of 1269
NXP Semiconductors
UM10503
Chapter 36: LPC43xx Event monitor/recorder
36.7.1 Event Monitor/Recorder Control Register
The Event Monitor/Recorder Control Register allows setup of the Event Monitor/Recorder
and individual control over aspects of each channel’s operation.
Table 814. Event Monitor/Recorder Control Register (ERCONTROL - address 0x4004 6084) bit description
Bit
Symbol
Value
Description
Reset
value
0
INTWAKE_EN0
Interrupt and wakeup enable for channel 0.
0
0
No interrupt or wakeup will be generated by event channel 0.
1
An event in channel 0 will trigger an (RTC) interrupt and a wake-up request.
1
GPCLEAR_EN0
Enables automatically clearing the RTC general purpose registers when an event
occurs on channel 0.
0
0
Channel 0 has no influence on the general purpose registers.
1
An event in channel 0 will clear the general purpose registers asynchronously.
2
POL0
Selects the polarity of an event on input pin WAKEUP0.
0
0
A channel 0 event is defined as a negative edge on WAKEUP0.
1
A channel 0 event is defined as a positive edge on WAKEUP0.
3
EV0_INPUT_EN
Event enable control for channel 0. Event Inputs should remain DISABLED when
not being used for event detection, particularly if the associated pin is being used
for some other function.
0
0
Event 0 input is disabled and forced high internally.
1
Event 0 input is enabled.
9:4
-
Reserved. Read value is undefined, only zero should be written.
NA
10
INTWAKE_EN1
Interrupt and wakeup enable for channel 1.
0
0
No interrupt or wakeup will be generated by event channel 1.
1
An event in channel 1 will trigger an (RTC) interrupt and a wake-up request.
11
GPCLEAR_EN1
Enables automatically clearing the RTC general purpose registers when an event
occurs on channel 1.
0
0
Channel 1 has no influence on the general purpose registers.
1
A n event in channel 1 will clear the general purpose registers asynchronously.
12
POL1
Selects the polarity of an event on input pin WAKEUP1.
0
0
A channel 1 event is defined as a negative edge on WAKEUP1.
1
A channel 1 event is defined as a positive edge on WAKEUP1.
13
EV1_INPUT_EN
Event enable control for channel 1. Event Inputs should remain DISABLED when
not being used for event detection, particularly if the associated pin is being used
for some other function.
0
0
Event 1 input is disabled and forced high internally.
1
Event 1 input is enabled.
19:14 -
Reserved. Read value is undefined, only zero should be written.
NA
20
INTWAKE_EN2
Interrupt and wakeup enable for channel 2.
0
No interrupt or wakeup will be generated by event channel 2.
1
An event in channel 2 will trigger an (RTC) interrupt and a wake-up request.