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Cache
Size
JS1
JS2
µ §
Figure 2-3: JS1 and JS2 Cache Size Settings.
µ §
µ §
Suitable SRAM include:
1. WINBOND W24M257AK-15 (32K8 mixed
2. WINBOND W24M512AK-15 (64K8 mixed
256K
2-3
1-2
1. Tag RAM (U27) uses 128AK.
2. Tag RAM (U27) uses 129AK.
All Data SRAM used on the system board are special
SRAM that use 5 volts for power input. However, all
other I/O pins use 3.3 volts level for access interface.
mode)
mode)
512K
512K
(128AK)
(129AK)
3-4
3-4
1M
2-3
1-2
2-3
2-3
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