LG KE990 Service Manual - Page 66

3. TECHNICAL BRIEF 3.11 Multimedia Chip Interface 3.11.1 Host Interface 3.11.1.1 Host Interface The HOST interface connects the ZR3453X and the host processor (a handset baseband chip) in two optional modes: • On the host memory bus. • On the host LCD bus. VREG_MSMP_2.7V R310 10K MMP_INT_N MMP_CS_N R311 0 R313 NA NAND_ALE EBI2_OE_N EBI2_WE_N B8 HCS0N A8 B7 HCS1N B9 HRDN A7 HWRN HGINTN EBI2_ADDR[11] EBI2_ADDR[12] EBI2_ADDR[13] EBI2_ADDR[14] A10 HA11 A9 HA12 C8 HA13 C7 HA14 EBI2_DATA[0] EBI2_DATA[1] EBI2_DATA[2] EBI2_DATA[3] EBI2_DATA[4] EBI2_DATA[5] EBI2_DATA[6] EBI2_DATA[7] EBI2_DATA[8] EBI2_DATA[9] EBI2_DATA[10] EBI2_DATA[11] EBI2_DATA[12] EBI2_DATA[13] EBI2_DATA[14] EBI2_DATA[15] EBI2_DATA[0:15] D12 HD0 C10 C12 HD1 C13 HD2 C14 HD3 B14 HD4 C11 HD5 HD6 B13 HD7 A14 HD8 A13 HD9 B12 HD10 A12 HD11 B11 A11 HD12 C9 HD13 B10 HD14 HD15 L13 NCSN M13 NALE L12 NCLE [ Block Diagram ] [ Schematics ] Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes - 67 - LGE Internal Use Only