LG TracFone LG840G Service Manual page 128

840G Block Diagram
DDR
SDRAM
1Gbit
External
Memory
(u-SD card)
LGE Internal Use Only
EBI1
SDRAM_CKE
SDRAM_CLK_P
SDRAM_CLK_N
SDRAM_CS_N
SDRAM_WE_N
SDRAM_RAS_N
SDRAM_CAS_N
SDRAM_DQM[0:1]
SDRAM_DQS[0:1]
ADDRESS[0:15]
DATA[0:15]
MICROSD_CLK
MICROSD_CMD
MICROSD_DETECT
MICROSD_DATA[0:3]
EBI2_DATA[0:15]
QSC6270
- 128 - Copyright © 2012 LG Electronics. Inc. All right reserved.
6. BLOCK DIAGRAM
EBI2
EBI2_CS1_N
EBI2_WE_N
EBI2_OE_N
NAND
EBI2_ALE
E
EBI2_CLE
2Gbit
RESOUT_N
NAND_READY
USIM_RST
USIM
USIM_CLK
USIM_DATA
Only for training and service purposes
ROM
2