Mmc Interface - LG U990 Service Manual

3. TECHNICAL BRIEF

3.12.8 MMC interface

ZR3453X has a dedicated port for multimedia cards. It can support SD (Secure Digital) cards and
SecureMMC (standard multimedia cards with security functions).
The same port can be used for HDD CE_ATA connection or SDIO to peripheral devices
(e.g.; MDTV front-end).
MMC
• MMC v4
• Dual voltage (separate IO power domain, host GPIO control)
• 1 or 4 bit cards
• Multiple cards support (if dual-voltage or high-speed interface are not used)
• Up to 43 MHz bit clock
SD
• 1 or 4 bit bus support
• High-Speed SD, up to 43 MHz bit clock
SDAT0
SDAT1
SDAT2
SDAT3
SCMD
SCLK
SWP
VMCLK
VPCLK
VHREF
3.12.9 Power Domain
LGE Internal Use Only
F1
F2
E5
F3
H2
R312 33
G1
G3
P12
P10
M12
K12
VVS
MMP_MICROSD_DATA[0]
MMP_MICROSD_DATA[1]
MMP_MICROSD_DATA[2]
MMP_MICROSD_DATA[3]
MMP_MICROSD_CMD
MMP_MICROSD_CLK
MMP_CAM_MCLK
MMP_CAM_PCLK
MMP_CAM_HSYNC
MMP_CAM_VSYNC
Copyright © 2007 LG Electronics. Inc. All right reserved.
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Only for training and service purposes