mpc2605 Micro Electronics Corporation, mpc2605 Datasheet - Page 19

• Manufacturer Part Number: mpc2605
• Description: Integrated Secondary Cache Powerpc Microprocessors
• Manufacturer: Micro Electronics Corporation

WRITE THROUGH BURST WRITE HIT
write–through mode L2 cache line, read miss or write miss
processing that replaces a clean line. For these operations
MPC2605 will not assert any signals on the 60X bus. A
cache line is considered write through if WT is asserted by
MOTOROLA
Figure 5 shows the fastest possible burst write hit to a
DH0 – DH31,
DL0 – DL31
L2 CLAIM
CPU DBG
A0 – A31
CPU BG
AACK
TBST
DBB
CLK
WT
TS
TA
LEGEND
Signal driven to the MPC2605
Signal driven by the MPC2605
High–Z
Figure 5. Fastest Possible Write Through Burst Write Hit for MPC603/604
1
A1
A
2
the processor when it asserts TS.
is solely dependent on the memory controller. The timing
shown here assumes that the memory controller has a write
buffer that can accept data this quickly.
A2
3
The speed at which a write–through operation completes
A3
4
5
A4
6
7
MPC2605
8
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