UM10462 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2016. All rights reserved.
User manual Rev. 5.5 — 21 December 2016 99 of 523
NXP Semiconductors
UM10462
Chapter 7: LPC11U3x/2x/1x I/O configuration
7.4.1.17 PIO0_16 register
Table 92. PIO0_16 register (PIO0_16, address 0x4004 4040) bit description
Bit Symbol Value Description Reset
value
2:0 FUNC Selects pin function. This pin functions as WAKEUP pin if the
LPC11U3x/2x/1x is in Deep power-down mode regardless of
the value of FUNC. Values 0x4 to 0x7 are reserved.
000
0x0 PIO0_16.
0x1 AD5.
0x2 CT32B1_MAT3.
0x3 IOH_8.
4:3 MODE Selects function mode (on-chip pull-up/pull-down resistor
control).
10
0x0 Inactive (no pull-down/pull-up resistor enabled).
0x1 Pull-down resistor enabled.
0x2 Pull-up resistor enabled.
0x3 Repeater mode.
5 HYS Hysteresis. 0
0 Disable.
1 Enable.
6 INV Invert input 0
0 Input not inverted (HIGH on pin reads as 1, LOW on pin reads
as 0).
1 Input inverted (HIGH on pin reads as 0, LOW on pin reads as
1).
7 ADMODE Selects Analog/Digital mode. 1
0 Analog input mode.
1 Digital functional mode.
8 FILTR Selects 10 ns input glitch filter. 0
0 Filter enabled.
1 Filter disabled.
9 - - Reserved. 0
10 OD Open-drain mode. 0
0 Disable.
1 Open-drain mode enabled.
Remark: This is not a true open-drain mode.
31:11 - - Reserved. 0
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