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 70 of 148
NXP Semiconductors
LPC185x/3x/2x/1x
32-bit ARM Cortex-M3 microcontroller
7.15.4 SD/MMC card interface
The SD/MMC card interface supports the following modes:
• Secure Digital memory (SD version 3.0)
• Secure Digital I/O (SDIO version 2.0)
• Consumer Electronics Advanced Transport Architecture (CE-ATA version 1.1)
• Multimedia Cards (MMC version 4.4)
7.15.5 External Memory Controller (EMC)
Remark: The EMC is available on all LPC185x/3x/2x/1x parts. The following memory bus
widths are supported:
• LBGA256 packages: 32 bit
• TFBGA100 packages: 8 bit
• LQFP208 packages: 16 bit
• LQFP144 packages: 16 bit
The LPC185x/3x/2x/1x EMC is a Memory Controller peripheral offering support for
asynchronous static memory devices such as RAM, ROM, and NOR flash. In addition, it
can be used as an interface with off-chip memory-mapped devices and peripherals.
7.15.5.1 Features
• Dynamic memory interface support including single data rate SDRAM.
• Asynchronous static memory device support including RAM, ROM, and NOR flash,
with or without asynchronous page mode.
• Low transaction latency.
Table 6. EMC pinout for different packages
Function LBGA256 TFBGA100 LQFP208 LQFP144
A EMC_A[23:0] EMC_A[13:0] EMC_A[23:0] EMC_A[15:0]
D EMC_D[31:0] EMC_D[7:0] EMC_D[15:0] EMC_D[15:0]
BLS
EMC_BLS[3:0] EMC_BLS0 EMC_BLS[1:0] EMC_BLS[1:0]
CS EMC_CS[3:0] EMC_CS0 EMC_CS[1:0] EMC_CS[1:0]
OE EMC_OE EMC_OE EMC_OE EMC_OE
WE EMC_WE EMC_WE EMC_WE EMC_WE
CKEOUT EMC_
CKEOUT[3:0]
EMC_
CKEOUT[1:0]
EMC_
CKEOUT[1:0]
EMC_
CKEOUT[1:0]
CLK EMC_CLK[3:0];
EMC_CLK01,
EMC_CLK23
EMC_CLK0,
EMC_CLK3;
EMC_CLK01,
EMC_CLK23
EMC_CLK0,
EMC_CLK3;
EMC_CLK01,
EMC_CLK23
EMC_CLK0,
EMC_CLK3;
EMC_CLK01,
EMC_CLK23
DQMOUT
EMC_
DQMOUT[3:0]
-EMC_
DQMOUT[1:0]
EMC_
DQMOUT[1:0]
DYCS EMC_
DYCS[3:0]
EMC_DYCS[1:0] EMC_DYCS[1:0] EMC_DYCS[1:0]
CAS EMC_CAS EMC_CAS EMC_CAS EMC_CAS
RAS EMC_RAS EMC_RAS EMC_RAS EMC_RAS