Datasheet
LPC185X_3X_2X_1X All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet Rev. 4.1 — 6 May 2014 71 of 148
NXP Semiconductors
LPC185x/3x/2x/1x
32-bit ARM Cortex-M3 microcontroller
• Read and write buffers to reduce latency and to improve performance.
• 8/16/32 data and 24 address lines-wide static memory support.
• 16-bit and 32-bit wide chip select SDRAM memory support.
• Static memory features include:
– Asynchronous page mode read
– Programmable Wait States
– Bus turnaround delay
– Output enable and write enable delays
– Extended wait
• Four chip selects for synchronous memory and four chip selects for static memory
devices.
• Power-saving modes dynamically control CKE and CLKOUT to SDRAMs.
• Software-controlled dynamic memory self-refresh mode.
• Controller supports 2048 (A0 to A10), 4096 (A0 to A11), and 8192 (A0 to A12) row
address synchronous memory parts. Those are typically 512 MB, 256 MB, and
128 MB parts.
• Separate reset domains allow auto-refresh through a chip reset if desired.
Note: Synchronous static memory devices (synchronous burst mode) are not supported.
7.15.6 High-speed USB Host/Device/OTG interface (USB0)
Remark: USB0 is available on the following parts: LPC185x, LPC183x, LPC182x. USB0
is not available on the LPC181x parts.
The USB OTG module allows the part to connect directly to a USB host such as a PC (in
device mode) or to a USB device in host mode.
7.15.6.1 Features
• On-chip UTMI+ compliant high-speed transceiver (PHY).
• Complies with Universal Serial Bus specification 2.0.
• Complies with USB On-The-Go supplement.
• Complies with Enhanced Host Controller Interface Specification.
• Supports auto USB 2.0 mode discovery.
• Supports all high-speed USB-compliant peripherals.
• Supports all full-speed USB-compliant peripherals.
• Supports software Host Negotiation Protocol (HNP) and Session Request Protocol
(SRP) for OTG peripherals.
• Supports interrupts.
• Supports Start Of Frame (SOF) frame length adjust.
• This module has its own, integrated DMA engine.
• USB interface electrical test software included in ROM USB stack.