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 107 of 368
NXP Semiconductors
UM10375
Chapter 7: LPC13xx I/O configuration
7.4.30 IOCON_R_PIO1_1
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 - - Reserved 1
7 ADMODE Selects Analog/Digital mode 1
0 Analog input mode
1 Digital functional mode
9:8 - - Reserved 00
10 OD Selects pseudo open-drain mode. 0
0 Standard GPIO output
1 Open-drain output
31:11 - - Reserved -
Table 125. IOCON_R_PIO1_0 register (IOCON_R_PIO1_0, address 0x4004 4078) bit
description
Bit Symbol Value Description Reset
value
Table 126. IOCON_R_PIO1_1 register (IOCON_R_PIO1_1, address 0x4004 407C) bit
description
Bit Symbol Value Description Reset
value
2:0 FUNC Selects pin function. All other values are reserved. 000
0x0 Selects function R. This function is reserved. Select one of
the alternate functions below.
0x1 Selects function PIO1_1.
0x2 Selects function AD2.
0x3 Selects function CT32B1_MAT0.
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 - - Reserved 1

NXP Semiconductors LPC1311 Specifications

General

Brand	NXP Semiconductors
Model	LPC1311
Category	Controller
Language	English