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Z
ILOG
RAM Size
16 KB (or larger) RAM at U4
The Z8S180 Emulator is shipped with an 8 KB RAM in the U4 location, and a shunt between J3-1 and
J3-2. If you want to put a 16 KB (or larger) RAM at U4, move the shunt to between J3-2 and J3-3.
RAM Presence/Location in User Address Space
The J5 header controls whether the RAM on the emulator appears in the user (target) memory map,
and if so, at what 8 KB boundary. It includes three separate shunt positions, between pins 1-2, 3-4,
and 5-6. The emulator is shipped with all three shunts installed, which locates the RAM to start at
address 00000. Other options include the following:
J5-5
J5-3
J5-1
to
to
to
J5-6
J5-4
J5-2
In
In
In
In
In
Out
In
Out
In
In
Out
Out
Out
In
In
Out
In
Out
Out
Out
In
Out
Out
Out
Note: When you locate Z8S180 Emulator RAM in user space, the emulator "hides" the last 256 bytes
of the RAM from being accessed by your software and your monitor commands, in order to protect
its internal variables, states, and tables. It passes accesses to these 256 bytes on to the target board,
if any.
EPROM Size
32 KB (27256) or larger ROM at U3
The Z8S180 Emulator is shipped with an 8 KB ROM in the U3 location, and a shunt between J2-1 and
J2-2. If you want to put a 32 KB (27256) or larger ROM at U3, move the shunt to between J2-2 and
J2-3.
2-4
Emulator RAM
Starts At:
00000
02000
Not in User Space
06000
08000
0A000
0C000
0E000
UM010501-0301
Z8S180 E
MULATOR
U
'
M
SER
S
ANUAL
ST951800100
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