OM11077 NXP Semiconductors, OM11077 Datasheet - Page 553

• Manufacturer Part Number: OM11077
• Description: MODULE DIMM LPC2478 ARM7
• Manufacturer: NXP Semiconductors

Specifications of OM11077

• Accessory Type: Module Card
• For Use With/related Products: ARM-57TS-LPC2478
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-4742

NXP Semiconductors
UM10237_4
User manual
Fig 106. MCI adapter
5.2.1 Secure digital memory card bus signals
APB BUS
5.3 MCI adapter
The following signals are used on the secure digital memory card bus:
Figure 21–106
The MCI adapter is a multimedia/secure digital memory card bus master that provides an
interface to a multimedia card stack or to a secure digital memory card. It consists of five
subunits:
Fig 105. Secure digital memory card connection
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CLK Host to card clock signal
CMD Bidirectional command/response signal
DAT[3:0] Bidirectional data signals
Adapter register block
Control unit
Command path
Data path
Data FIFO
INTERFACE
APB
shows a simplified block diagram of the MCI adapter.
MULTIMEDIA CARD INTERFACE
Rev. 04 — 26 August 2009
REGISTERS
ADAPTER
FIFO
MEMORY CARD
CONTROLLER
SECURE
DIGITAL
CONTROL
UNIT
Chapter 21: LPC24XX SD/MMC card interface
CLK
CMD
D[3:0]
MEMORY CARD
DATA PATH
COMMAND
PATH
SECURE
DIGITAL
MCICLK
MCIPWR
MCICMD
MCIDATA [3:0]
UM10237
© NXP B.V. 2009. All rights reserved.
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