lpc2377 NXP Semiconductors, lpc2377 Datasheet - Page 25

• Manufacturer Part Number: lpc2377
• Description: Single-chip 16-bit/32-bit Microcontroller; 512 Kb ?ash With Isp/iap, Ethernet, Usb 2.0, Can, And 10-bit Adc/dac
• Manufacturer: NXP Semiconductors

NXP Semiconductors
LPC2377_78_4
Product data sheet
7.18.1 Features
7.19.1 Features
7.18 SD/MMC card interface
7.19 I
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.
The LPC2377/78 contains three I
The I
(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 I
be controlled by more than one bus master connected to it.
The I
I
2
2
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C-bus).
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C-bus serial I/O controllers
Synchronous serial communication
Master or slave operation
8-frame FIFOs for both transmit and receive
4-bit to 16-bit frame
DMA transfers supported by GPDMA
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.
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 GPDMA controller.
I
I
devices connected to the same bus lines.
Easy to configure as master, slave, or master/slave.
Programmable clocks allow versatile rate control.
Bidirectional data transfer between masters and slaves.
Multi-master bus (no central master).
2
2
2
2
C0 is a standard I
C1 and I
C-bus is bidirectional, for inter-IC control using only two wires: a serial clock line
C-bus implemented in LPC2377/78 supports bit rates up to 400 kbit/s (Fast
2
C2 use standard I/O pins and do not support powering off of individual
Rev. 04 — 19 November 2008
2
C compliant bus interface with open-drain pins.
2
C-bus controllers.
Single-chip 16-bit/32-bit microcontroller
2
C-bus is a multi-master bus and can
LPC2377/78
© NXP B.V. 2008. All rights reserved.
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