LG HT905TAW Service Manual page 30

3) Flash R/W enable signal during download(Downloading)
SF_DI
SF_DO
2. SDRAM CLOCK
1) MT1389FE/GH main clock is at 27 MHz(X500)
DCLK = 93 MHz, Vp-p = 2.2, Vmax = 2.7 V
SDCLK
FIG 1-3
FIG 2-1
5
6
6
7
2-21
5
7