Datasheet

UM10398 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved.
User manual Rev. 12.3 — 10 June 2014 122 of 547
NXP Semiconductors
UM10398
Chapter 8: LPC1100XL series: I/O configuration (IOCONFIG)
8.4.19 IOCON_PIO0_7
8.4.20 IOCON_PIO2_9
Remark: See Section 8.1 for part specific details.
Table 124. IOCON_PIO0_7 register (IOCON_PIO0_7, address 0x4004 4050) bit description
Bit Symbol Value Description Reset
value
2:0 FUNC Selects pin function. All other values are reserved. 000
0x0 Selects function PIO0_7.
0x1 Select function CTS
.
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.
9:6 - - Reserved 0011
10 OD Selects pseudo open-drain mode. 0
0 Standard GPIO output
1 Open-drain output
31:11 - - Reserved -
Table 125. IOCON_PIO2_9 register (IOCON_PIO2_9, address 0x4004 4054) bit description
Bit Symbol Value Description Reset
value
2:0 FUNC Selects pin function. All other values are reserved. 000
0x0 Selects function PIO2_9.
0x1 Selects function CT32B0_CAP0.
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.
9:6 - - Reserved 0011