User Manual

UM10360 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
User manual Rev. 2 — 19 August 2010 299 of 840
NXP Semiconductors
UM10360
Chapter 14: LPC17xx UART0/2/3
14.3 Pin description
14.4 Register description
Each UART contains registers as shown in Table 270. The Divisor Latch Access Bit
(DLAB) is contained in UnLCR7 and enables access to the Divisor Latches.
Table 269: UARTn Pin description
Pin Type Description
RXD0, RXD2, RXD3 Input Serial Input. Serial receive data.
TXD0, TXD2, TXD3 Output
Serial Output. Serial transmit data.