lpc1778 NXP Semiconductors, lpc1778 Datasheet - Page 54

• Manufacturer Part Number: lpc1778
• Description: 32-bit Arm Cortex-m3 Microcontroller; Up To 512 Kb Flash And 96 Kb Sram; Usb Device/host/otg; Ethernet; Lcd; Emc
• Manufacturer: NXP Semiconductors

NXP Semiconductors
LPC178x_7x
Objective data sheet
7.15.2.1 Features
7.15.3.1 Features
7.15.2 USB host controller
7.15.3 USB OTG controller
7.16.1 Features
7.16 SD/MMC card interface
The host controller enables full- and low-speed data exchange with USB devices attached
to the bus. It consists of register interface, serial interface engine and DMA controller. The
register interface complies with the Open Host Controller Interface (OHCI) specification.
USB OTG is a supplement to the USB 2.0 Specification that augments the capability of
existing mobile devices and USB peripherals by adding host functionality for connection to
USB peripherals.
The OTG Controller integrates the host controller, device controller, and a master-only I
interface to implement OTG dual-role device functionality. The dedicated I
controls an external OTG transceiver.
Remark: The SD/MMC card interface is available on parts LPC1788/87/86 and parts
LPC1778/77/76.
The Secure Digital and Multimedia Card Interface (MCI) allows access to external SD
memory cards. The SD card interface conforms to the SD Multimedia Card Specification
Version 2.11.
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Supports DMA transfers with all on-chip SRAM blocks on all non-control endpoints.
Allows dynamic switching between CPU-controlled and DMA modes.
Double buffer implementation for Bulk and Isochronous endpoints.
OHCI compliant
Two downstream ports
Supports per-port power switching
Fully compliant with On-The-Go supplement to the USB 2.0 Specification, Revision
1.0a.
Hardware support for Host Negotiation Protocol (HNP).
Includes a programmable timer required for HNP and Session Request Protocol
(SRP).
Supports any OTG transceiver compliant with the OTG Transceiver Specification
(CEA-2011), Rev. 1.0.
The MCI provides all functions specific to the SD/MMC memory card. These include
the clock generation unit, power management control, and command and data
transfer.
Conforms to Multimedia Card Specification v2.11.
Conforms to Secure Digital Memory Card Physical Layer Specification, v0.96.
All information provided in this document is subject to legal disclaimers.
Rev. 00.04 — 8 July 2010
32-bit ARM Cortex-M3 microcontroller
LPC178x/7x
© NXP B.V. 2010. All rights reserved.
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