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CAUTION
Connecting to the Target System
To connect the preprocessor to the target system
To connect the preprocessor to the target system
The microprocessor connector on the preprocessor interface will connect
directly to the PGA socket on the target system. The Power PC 604
microprocessor connects to a pin protector on top of the preprocessor
interface.
1 To prevent equipment damage, remove power from both the logic
analyzer and the target system.
2 Remove the 604 PGA microprocessor from its socket on the target
system and store it in a protected environment.
3 Install the preprocessor interface into the PGA socket on the target
system. Ensure that pin Al is properly aligned (see figure on next
page). The socket on the preprocessor interface is designed with
low-insertion-force pins to allow insertion and removal with
minimum force.
Serious damage
to
the target system or preprocessor interface can result
from incorrect connection. Note the position of pin Al on the target system,
preprocessor interface, and microprocessor prior to making any connection.
Also, take care
to
align the preprocessor interface connector pins with the
_ _ _ _ _ _ _ _ target system PGA socket so that all pins are making contact.
If the preprocessor interface connector interferes with components of the
target system or if a higher profile is required, additional plastic pin protector
sockets can be added. Plastic pin protector sockets can be ordered from
Hewlett-Packard using the part number 1200-1975. However, any 287-pin PGA
IC socket with a 604footprint and gold-plated pins can be used.
4 Plug the PowerPC 604 microprocessor into a pin protector, and plug
that into the PGA socket on the preprocessor interface, again
ensuring that pin Al is properly aligned.
The PowerPC 604 microprocessor can be difficult to remove if you connect it
directly to the preprocessor interface. Always use a pin protector between the
microprocessor and the PGA socket on the preprocessor interface.
1-6
E2465A PowerPC 604 PGA Preprocessor
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