LPC2364 datasheet(22/48 Pages) PHILIPS

22 / 48 page

LPC2364_66_68_1

Preliminary data sheet

Rev. 01 — 22 September 2006

22 of 48

Philips Semiconductors

LPC2364/2366/2368

Fast communication chip

7.16 SSP serial I/O controller

The LPC2364/66/68 each contain two SSP controllers. The SSP is a Synchronous Serial

Port (SSP) controller capable of operation on a SPI, 4-wire SSI, or Microwire bus. It can

interact with multiple masters and slaves on the bus. Only a single master and a single

slave can communicate on the bus during a given data transfer. The SSP supports full

duplex transfers, with frames of 4 bits to 16 bits of data flowing from the master to the

slave and from the slave to the master. In practice, often only one of these data flows

carries meaningful data.

7.16.1 Features

• Compatible with Motorola SPI, 4-wire TI SSI, and National Semiconductor Microwire

buses

• Synchronous Serial Communication

• Master or slave operation

• 8-frame FIFOs for both transmit and receive

• Four bits to 16 bits frame

• DMA transfers supported by GPDMA

7.17 SD/MMC card interface (available in LPC2368 only)

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.

7.17.1 Features

• The MCI interface provides all functions specific to the Secure Digital/MultiMedia

memory card. These include the clock generation unit, power management control,

and command and data transfer.

• Conformance to Multimedia Card Specification v2.11.

• Conformance to Secure Digital Memory Card Physical Layer Specification, v0.96.

• Can be used as a multimedia card bus or a secure digital memory card bus host. The

SD/MMC can be connected to several multimedia cards or a single secure digital

memory card.

• DMA supported through the General Purpose DMA Controller.

7.18 I2C-bus serial I/O controllers

The LPC2364/66/68 each contains three I2C-bus controllers.

The I2C-bus is bidirectional, for inter-IC control using only two wires: a serial clock line

(SCL), and a serial data line (SDA). Each device is recognized by a unique address and

can operate as either a receiver-only device (e.g., an LCD driver) or a transmitter with the

capability to both receive and send information (such as memory). Transmitters and/or

receivers can operate in either master or slave mode, depending on whether the chip has

to initiate a data transfer or is only addressed. The I2C-bus is a multi-master bus, it can be

controlled by more than one bus master connected to it.

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