Specifications

7
Target System
Requirements for
PowerPC 603/e
(Please note the following is a par-
tial list of requirements. Please
refer to the users manuals, for
more details.)
Mask Revision dd1
PPC603e silicon does not work in
debug mode with either cache
enabled.
Mask Revision dd3
PPC603 silicon can be used with
the emulation probe and module.
/QACK Signal
If a target does not use the /QACK
signal, the board must have a
1 KOhm pull down resistor to drive
this signal low.
Reset Signal
The HRESET SRESET, and TRST
signals from the JTAG connector
must be logically ORed with the
HREST, SRESET, and TRST signals
that connect to the processor on
the target system.
Unsupported Modes
The emulation probe and module
do not support any target systems
which:
• Use MMU for address translation
• Access devices that check parity
(PPC603 and PPC603e)
• Try to access TLB entries
Motorola MVME 160X, Ultra,
Atlas and Series E Target
Boards
These boards have an unpopulated
header location for installing the
16-pin connector. You must install
a 16-pin connector as described
earlier.
A resistor change is required to pull
QACK low. The 1KOhm resistor
that goes between the PPC603 and
the PPC105 must be changed to 10
ohm.
For the MVME1603 series PM603
module this resistor is R27 on the
8018F, 8019F, 8100F and 8101F art-
work.
For the Atlas it is R42 on the Rev B
8115F artwork. For the Ultra, it is
R10 on the 8107D and later art-
work.
These boards use DRTRY mode, so
the configuration entry "cf drty=on"
must be set on the emulation probe
and module if cache is enabled.
The configuration entry "cf reset =
runrom" also must be set.
Cogent CSB277
This board asserts AACK for more
than one clock cycle. For proper
disassembly, "Delayed-AACK" ver-
sion of the inverse assembler must
be used with the logic analyzer.
Target System
Requirements for Other
PowerPC Processors
For PowerPC processors other
than the 603 and 603e, all target
requirements are described
in the "readme" files on the floppy
disks provided with the emulation
probe and module.