Timing Diagrams
294
NS7520 Hardware Reference, Rev. D 03/2006
fp_refresh_cycles
Fast page refresh (RCYC = 00)
Fast page refresh (RCYC = 01)
RF1 RF2 RF3 RF4 RF5 RF6 RF7 RF8 T1
1212
4343
4343
4343
4343
2727
BCLK
RAS[4:0]*
CAS3*
CAS2*
CAS1*
CAS0*
WE*
RF1 RF2 RF3 RF4 RF5 RF6 RF8 T1
1212
4343
4343
4343
4343
2727
FtP Rf h(RCYC01)
BCLK
RAS[4:0]*
CAS3*
CAS2*
CAS1*
CAS0*
WE*