UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
62 of 1269
NXP Semiconductors
UM10503
Chapter 8: LPC43xx Event router
8.6 Register description
8.6.1 Level configuration register
This register works in combination with the edge configuration register EDGE (see
) to configure the level and edge detection for each input to the event router.
Table 31.
Register overview: Event router (base address 0x4004 4000)
Name
Access
Address
offset
Description
Reset
Value
Reference
HILO
R/W
0x000
Level configuration register
0x000
EDGE
R/W
0x004
Edge configuration
0x000
-
-
0x008 -
0xFD4
Reserved
-
-
CLR_EN
W
0xFD8
Clear event enable register
0x0
SET_EN
W
0xFDC
Set event enable register
0x0
STATUS
R
0xFE0
Event Status register
0x0
ENABLE
R
0xFE4
Event Enable register
0x0
CLR_STAT
W
0xFE8
Clear event status register
0x0
SET_STAT
W
0xFEC
Set event status register
0x0
Table 32.
Level configuration register (HILO - address 0x4004 4000) bit description
Bit
Symbol
Value Description
Reset
value
0
WAKEUP0_L
Level detect mode for WAKEUP0 event.
0
0
Detect LOW level on the WAKEUP0 pin if bit 0 in the
EDGE register is 0. Detect falling edge if bit 0 in the EDGE
register is 1.
1
Detect HIGH level on the WAKEUP0 pin if bit 0 in the
EDGE register is 0. Detect rising edge if bit 0 in the EDGE
register is 1.
1
WAKEUP1_L
Level detect mode for WAKEUP1 event. The
corresponding bit in the EDGE register must be 0.
0
0
Detect LOW level on the WAKEUP1 pin if bit 1 in the
EDGE register is 0.
1
Detect HIGH level on the WAKEUP1 pin if bit 1 in the
EDGE register is 0. Detect rising edge if bit 1 in the EDGE
register is 1.
2
WAKEUP2_L
Level detect mode for WAKEUP2 event.
0
0
Detect LOW level on the WAKEUP2 pin if bit 2 in the
EDGE register is 0. Detect falling edge if bit 2 in the EDGE
register is 1.
1
Detect HIGH level on the WAKEUP2 pin if bit 2 in the
EDGE register is 0. Detect rising edge if bit 2 in the EDGE
register is 1.