Interface Description - HP 10312D Operating Manual

Interface
Description
ADDRESS
STATUS
DATA
CONTROL
24
7
16
INTERFACE
SITE BOARD
....
~
The primary function of an interface module is to connect the target
microprocessor to the logic analyzer through the probe interface, and
to perform any functions unique to that particular microprocessor.
The HP 103120 Interface Module performs this primary function by:
1. Latching and buffering the address, status, and data bus of the 80286
microprocessor so that address, status, and data can be sent to. the
logic analyzer at the same time; and
2. Generating the logic analyzer clock from the appropriate 80286
microprocessor signals and bus conditions. See figure 2-1 for a
block diagram of the interface module.
ADDRESS
STATUS
DATA
CONTROL
~
-"'
~
PRIMARY
LATCHES
CLOCK
QUALIFIER
ADDRESS
24
STATUS
7
DATA
16
CONTROL
Figure 2-1. 80286 Interface Block Diagram
-"'
DATA
~
~
SECONDARY
LATCHES
MISC/BL01
16
~
General Information
2-3