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3.8 Micro-SD Card Interface
3.8 Micro-SD Card Interface
MSD_D[2]
MSD_D[3]
MSD_CMD
Changed (10/30)
VMMC_3V3
VA324 VA325 VA326
The controller fully supports the Memory Stick bus protocol as defined in Format Specification version 2.0 of
Memory Stick Standard (Memory Stick PRO) and the SD Memory Card bus protocol as defined in SD Memory
Card Specification Part 1 Physical Layer Specification version 2.0 as well as the Multi Media Card(MMC) bus
protocol as defined in MMC system specification version 4.1.
compatible to MMC bus protocol, the controller is capable of working well as the host on MMC bus under
control of proper firmware. Furthermore, the controller also support SDIO card specification version 1.0 partially.
However, the controller can only be configured as either the host controller.
LGE Internal Use Only
LGE Internal Use Only
J301
1
8
DAT2
DAT1
2
7
CD/DAT3
DAT0
3
6
CMD
VSS
4
5
VDD
CLK
9
11
GND1
POL
10
12
GND2
DET
Changed (12/29)
Figure 3.8.1 Micro-SD Card Interface
Figure 3.8.1 Micro-SD Card Interface
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3. TECHNICAL BRIEF
3. TECHNICAL BRIEF
MSD_D[1]
MSD_D[0]
MSD_CLK
VA321
VA322
VA323
Since SD memory Card bus protocol is backward
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
VIO_2V8
R221
(7/3) R221 : 1Mohm
1M
MSD_DET_N
C265
1u
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