User`s manual

2.1 Configuration Jumpers
Table 2–1 (Cont.) Jumper Position Descriptions
Select Bit
Register Bit
Name Function
sp_bit<2:0> BC_SIZE<2:0> L2 cache size selection is shown here.
BC_SIZE
<2> <1> <0>
J3-15 J3-13 J3-11 L2 Cache Size
In
1
In In Disables L2 cache
In In Out
2
512KB (default for
21A02–A5)
In Out In 1MB
In Out Out 2MB (default for
21A02–A3 and 21A02–A4)
Out In In 4MB
Out In Out 8MB
Out Out In Reserved
Out Out Out Reserved
1
Jumper in (logical 0)
2
Jumper out (logical 1)
System Jumpers and Connectors 2–5