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 136 of 547
NXP Semiconductors
UM10398
Chapter 8: LPC1100XL series: I/O configuration (IOCONFIG)
8.4.41 IOCON_PIO1_7
8.4.42 IOCON_PIO3_3
10 OD Selects pseudo open-drain mode. 0
0 Standard GPIO output
1 Open-drain output
31:11 - - Reserved -
Table 145. IOCON_PIO1_6 register (IOCON_PIO1_6, address 0x4004 40A4) bit description
Bit Symbol Value Description Reset
value
Table 146. IOCON_PIO1_7 register (IOCON_PIO1_7, address 0x4004 40A8) bit description
Bit Symbol Value Description Reset
value
2:0 FUNC Selects pin function. All other values are reserved. 000
0x0 Selects function PIO1_7.
0x1 Selects function TXD.
0x2 Selects function CT32B0_MAT1.
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 147. IOCON_PIO3_3 register (IOCON_PIO3_3, address 0x4004 40AC) bit description
Bit Symbol Value Description Reset
value
2:0 FUNC Selects pin function. All other values are reserved. 000
0x0 Selects function PIO3_3.
0x1 Selects function RI
.
0x2 Selects function CT16B0_CAP0.