A. Board Configuration
ÛZIATECH
93
RP1 and RP2
ZT 8907 Configuration
STD 32 Bus Signals
Installed
Permanent Master in a STAR
SYSTEM or Single Master in a
non-STAR SYSTEM
Pulled up; CLOCK* and
SYSRESET* driven by this
CPU
Installed
ZT 8907 is operating as a
stand-alone processor not
installed in a backplane
------
Removed
Temporary Master in a STAR
SYSTEM or stand-alone
processor in a backplane with
other CPUs
Not pulled up; CLOCK* and
SYSRESET* not driven by this
CPU
Note:
To use the ZT 8907 as a stand-alone processor, jumper W8 must be installed.
CUTTABLE TRACE OPTIONS AND LOCATIONS
The ZT 8907 contains several cuttable traces (zero ohm shorting resistors) for
configuring less frequently selected board options. The "
figure below shows the placement of the ZT 8907 cuttable traces. The "
" table provides a quick cross-reference for the ZT 8907 cuttable trace
descriptions that follow.
There are two types of cuttable traces on the ZT 8907: single-option and double-option.
Single option
cuttable traces (labeled CT
x--
for example, CT2) have two surface mount
pads. A zero ohm shorting resistor is then soldered between these pads to make the
connection.
Double option
cuttable traces (labeled CT
x
"A" and "B"--for example,
CT1A and CT1B) are implemented using three surface mount pads. The zero ohm
shorting resistor is then soldered between one set of pads, depending on the chosen
option.
Note:
Cuttable trace modifications should only be performed by a qualified technician
familiar with surface mount soldering techniques. The product warranty is voided if the
board is damaged by customer modifications. If a qualified technician is not available to
you, contact
. For large production orders, Ziatech can also
set up specials that are pre-configured at the factory. Contact Ziatech for more
information.
