Fpm Dram Burst Read With Ecc - Motorola MPC8240 User Manual

Figure 6-41 shows a FPM burst read operation.
MCLK
RAS
CAS
ADDR
DRAM DATA
INTERNAL
DATA BUS
Device driving data bus
TA
Figure 6-42 shows an EDO burst read operation.
MCLK
RAS
CAS
ADDR
DRAM DATA
INTERNAL
DATA BUS
TA
WE
Figure 6-42. EDO DRAM Burst Read Timing with ECC
ROW COL
D0
DRAM
D0
Figure 6-41. FPM DRAM Burst Read with ECC
ROW COL
DRAM
Device driving data bus
Chapter 6. MPC8240 Memory Interface
FPM or EDO DRAM Interface Operation
COL COL
D1 D2
DRAM DRAM
D0 D1 D1 D2
MPC8240 MPC8240
COL COL
D0 D1
DRAM
D0 D0 D1 D1
MPC8240 MPC8240
COL
D3
DRAM
D2 D3 D3
MPC8240 MPC8240
COL
D2 D3
DRAM DRAM
D2 D2 D3 D3
MPC8240 MPC8240
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