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LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
3. Technical Brief
Figure. Simplified Block Diagram of Memory Interface
MSM7227
DDR
SDRAM
2Gbit
NAND
4Gbit
SDRAM_D[31:0]
SDRAM_ADDR[13:0]
nSDRAM_WE
nSDRAM_CS
SDRAM_DCLK[1:0]
SDRAM_CKE
nSDRAM_RAS
nSDRAM_CAS
nNAND_FLASH_CS
nOE2
nWE2
nUB2
nLB2
nRESETOUT1
NAND_FLASH_READY
EBI2_DATA[15:0]
EBI1
EBI2
External Memory
(MICRO SD card)
MMC_DATA[3:0]
MMC_CMD
MMC_CLK
SDRAM_DQM[3:0]
SDRAM_DQS[3:0]
4
MICROSD_DATA[:0]
MICROSD_CM
MICROSD_CLK