Samsung SCX-5312F - Page 133

3-16
CIRCUIT DESCRIPTION
Samsung Electronics
Repair Manual
3-2-5-4 edo DRAM write timing
5Mhz
MCLK
DRAMD
nWE
nOE
DRAMA
nCAS
nRAS
data 1data 0
row address
column
Trp
Trc
Tcas
Tcas
addr
wait
wait
data
data
clock
type
Trp Trc Tcas
cycle
#
register cycle
#
register cycle
#
register
58Mhz
40 ns EDO 2 0x1 2 0x1 1 0x0
50 ns EDO 2 0x1 2 0x1 1 0x0
60 ns EDO 3 0x2 2 0x1 1 0x0
70 ns EDO 3 0x2 2 0x1 2 0x1
column
<FPM Write Timing Diagram>
<SFR Values Example for FPM>