User`s guide

2.1.2 Hardware Configuration Jumpers
Hardware configuration jumpers are shown in Figure 2–1 and are described in
Table 2–2.
Table 2–2 AlphaPC64 Board Jumpers
Connector Pins Description
Note: All other combinations are reserved.
L2 Cache Address Lines
J15 4 Adr<22:19> L2 cache (AlphaPC64.8)
J15-1
Adr19
J15-2
Adr20
J15-3
Adr21
J15-4
Adr22 Size
In
1
In In In 8MB
In In In Out
2
4MB
In In Out Out 2MB (default)
In Out Out Out 1MB
Out Out Out Out 512KB
1
Jumper in (logical 0)
2
Jumper out (logical 1)
(continued on next page)
System Jumpers and Connectors 2–5