UM10503
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User manual
Rev. 1.3 — 6 July 2012
942 of 1269
NXP Semiconductors
UM10503
Chapter 36: LPC43xx Event monitor/recorder
36.6 Pin description
36.7 Register description
Reset values apply only to a power-up of the Event Monitor/Recorder block, other types of
reset have no effect on this block. Since the Event Monitor/Recorder is powered
whenever either of the V
DD(REG)(3V3)
, or V
BAT
supplies are present, power-up reset occurs
only when both supplies were absent and then one is turned on. The Reset Value reflects
the data stored in used bits only. It does not include reserved bits content.
Table 812. Event Monitor/Recorder pin description
Name
Type
Description
WAKEUP0
Input
Event input for event monitor/recorder channel 0.
WAKEUP1
Input
Event input for event monitor/recorder channel 1.
WAKEUP2
Input
Event input for event monitor/recorder channel 2.
SAMPLE
Output
Sample clock output for the event monitor/recorder. Use the
CREG0 register to enable this pin for the sample output. (see
).
Table 813. Register overview: event monitor/recorder (base address 0x4004 6000)
Name
Access
Address
offset
Description
Reset
value
ERCONTROL
R/W
0x084
Event Monitor/Recorder Control register. Contains bits that control
actions for the event channels as well as for Event Monitor/Recorder
setup.
0
ERSTATUS
R/W
0x080
Event Monitor/Recorder Status register. Contains status flags for
event channels and other Event Monitor/Recorder conditions.
0
ERCOUNTERS
RO
0x088
Event Monitor/Recorder Counters register. Allows reading the
counters associated with the event channels.
0
ERFIRSTSTAMP0 RO
0x090
Event Monitor/Recorder First Stamp register for channel 0. Retains
the time stamp for the first event on channel 0.
NA
ERFIRSTSTAMP1 RO
0x094
Event Monitor/Recorder First Stamp register for channel 1 (see
ERFIRSTSTAMP0 description).
NA
ERFIRSTSTAMP2 RO
0x098
Event Monitor/Recorder First Stamp register for channel 2 (see
ERFIRSTSTAMP0 description).
NA
ERLASTSTAMP0
RO
0x0A0
Event Monitor/Recorder Last Stamp register for channel 0. Retains
the time stamp for the last (i.e. most recent) event on channel 0.
NA
ERLASTSTAMP1
RO
0x0A4
Event Monitor/Recorder Last Stamp register for channel 1 (see
ERLASTSTAMP0 description).
NA
ERLASTSTAMP2
RO
0x0A8
Event Monitor/Recorder Last Stamp register for channel 2 (see
ERLASTSTAMP0 description).
NA