EA-XPR-007 Embedded Artists, EA-XPR-007 Datasheet - Page 20

• Manufacturer Part Number: EA-XPR-007
• Description: BOARD LPCXPRESSO LPC11U14
• Manufacturer: Embedded Artists

Specifications of EA-XPR-007

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

NXP Semiconductors
LPC11U1X
Objective data sheet
7.5.1.1 Features
7.5.1 Full-speed USB device controller
7.6.1 Features
7.6 USART
The device controller enables 12 Mbit/s data exchange with a USB Host controller. It
consists of a register interface, serial interface engine, and endpoint buffer memory. The
serial interface engine decodes the USB data stream and writes data to the appropriate
endpoint buffer. The status of a completed USB transfer or error condition is indicated via
status registers. An interrupt is also generated if enabled.
The LPC11U1x contains one USART.
The USART includes full modem control, support for synchronous mode, and a smart
card interface. The RS-485/9-bit mode allows both software address detection and
automatic address detection using 9-bit mode.
The USART uses a fractional baud rate generator. Standard baud rates such as
115200 Bd can be achieved with any crystal frequency above 2 MHz.
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Dedicated USB PLL available.
Fully compliant with USB 2.0 specification (full speed).
Supports 5 physical (10 logical) endpoints including one control endpoint.
Single and double buffering supported.
Each non-control endpoint supports bulk, interrupt, or isochronous endpoint types.
Supports wake-up from Deep-sleep mode and Power-down mode on USB activity
and remote wake-up.
Supports SoftConnect.
Maximum USART data bit rate of 3.125 Mbit/s.
16-byte receive and transmit FIFOs.
Register locations conform to 16C550 industry standard.
Receiver FIFO trigger points at 1 B, 4 B, 8 B, and 14 B.
Built-in fractional baud rate generator covering wide range of baud rates without a
need for external crystals of particular values.
Fractional divider for baud rate control, auto baud capabilities and FIFO control
mechanism that enables software flow control implementation.
Support for RS-485/9-bit mode.
Support for modem control.
Support for synchronous mode.
Includes smart card interface.
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 11 April 2011
32-bit ARM Cortex-M0 microcontroller
LPC11U1x
© NXP B.V. 2011. All rights reserved.
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