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3. TECHNICAL BRIEF
3.13.8 MMC interface
ZR345X 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
3.13.9 Power Domain
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
SCMD
SDAT0
F1
SDAT1
F2
SDAT2
E5
F3
SDAT3
G3
SCLK
G1
H2
R307
33
MMP_MICROSD_CLK
MMP_MICROSD_DATA[3]
MMP_MICROSD_DATA[2]
MMP_MICROSD_DATA[1]
MMP_MICROSD_DATA[0]
MMP_MICROSD_CMD