NXP Semiconductors LPC1311 User Manual

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 35 of 368
NXP Semiconductors
UM10375
Chapter 3: LPC13xx System configuration
3.5.39 Start logic reset register 0
Writing a one to a bit in the STARTRSRP0CLR register resets the start logic state. The bit
assignment is identical to Table 44
. The start-up logic uses the input signals to generate a
clock edge for registering a start signal. This clock edge (falling or rising) sets the interrupt
for waking up from Deep-sleep mode. Therefore, the start-up logic states must be cleared
before being used.
3.5.40 Start logic status register 0
This register reflects the status of the enabled start signal bits. The bit assignment is
identical to Table 44
. Each bit (if enabled) reflects the state of the start logic, i.e. whether
or not a wake-up signal has been received for a given pin.
3.5.41 Start logic edge control register 1
The STARTAPRP1 register controls the start logic inputs of ports 2 (PIO2_8 to PIO2_11)
and 3 (PIO3_0 to PIO3_3). This register selects a falling or rising edge on the
corresponding PIO input to produce a falling or rising clock edge, respectively, for the
start-up logic.
Table 46. Start logic reset register 0 (STARTRSRP0CLR, address 0x4004 8208) bit
description
Bit Symbol Description Reset
value
11:0 RSRPIO0_n Start signal reset for start logic input PIO0_n (bit 0 = PIO0_0, ...,
bit 11 = PIO0_11).
0 = Do nothing.
1 = Write: reset start signal.
0
23:12 RSRPIO1_n Start signal reset for start logic input PIO1_n (bit 12 = PIO1_0, ...,
bit 23 = PIO1_11).
0 = Do nothing.
1 = Write: reset start signal.
0
31:24 RSRPIO2_n Start signal reset for start logic input PIO2_n (bit 24 = PIO2_0, ...,
bit 31 = PIO2_7).
0 = Do nothing.
1 = Write: reset start signal.
0
Table 47. Start logic status register 0 (STARTSRP0, address 0x4004 820C) bit description
Bit Symbol Description Reset
value
11:0 SRPIO0_n Start signal status for start logic input PIO0_n (bit 0 = PIO0_0, ...,
bit 11 = PIO0_11).
0 = No start signal received.
1 = Start signal pending.
0
23:12 SRPIO1_n Start signal status for start logic input PIO1_n (bit 12 = PIO1_0, ...,
bit 23 = PIO1_11).
0 = No start signal received.
1 = Start signal pending.
0
31:24 SRPIO2_n Start signal status for start logic input PIO2_n (bit 24 = PIO2_0, ...,
bit 31 = PIO2_7).
0 = No start signal received.
1 = Start signal pending.
0

NXP Semiconductors LPC1311 Specifications

General

Brand	NXP Semiconductors
Model	LPC1311
Category	Controller
Language	English