Motorola MPC8260 User Manual
MOTOROLA
Chapter 10. Memory Controller
10-39
Part III. The Hardware Interface
Figure 10-20. PRETOACT = 2 (2 Clock Cycles)
10.4.6.2 Activate to Read/Write Interval
This parameter, controlled by P/LSDMR[ACTTORW], deÞnes the earliest timing for
READ
/
WRITE
command after an
ACTIVATE
command.
Figure 10-21. ACTTORW = 2 (2 Clock Cycles)
CLK
ALE
CS
SDRAS
SDCAS
WE
DQM
PRECHARGE
Command
ACTIVATE
MA11
MA10
MA[0Ð9]
RAy
RAy
Bank A
Command
Bank A
PRETOACT = 2
CLK
ALE
CS
SDRAS
SDCAS
Rbz
WE
DQM
ACTIVATE
MA[0Ð11]
Command
ACTTORW = 2
DATA
D0
D1
D2
D3
WRITE
Command
Cbz