ZiLOG ZDS-1 Series User Manual page 4

I
--
-
ZDS-1/40 4 MHz Development System
The ZDS-1/40 provides a powerful standalone development system for use with the 2 8 0 or Z80A Micropro-
cessor and associated 4MHz peripheral components. Precise emulation is provided by using two microprocessors,
a Z8OA-CPU which is inserted into the prototype system and a second Z8O-CPU which is internal to the devel-
opment system. This method allows precise emulation up to clock frequencies of 4MHz.
3
While similar in functional capability to the ZDS-1/25 Development System the ZDS-1/40 provides special
features, shown below.
External Z80A-CPU for direct connection to the user's
prototype system.
Precise emulation for systems employing clock rates to
4MHz.
-
Memory mapping and protection in blocks of 1024 bytes.
User memory refresh, even when an emulation is suspend-
:d.
Verification of user clock integrity.
Memory address translation.
-
Detection of memory accesses to write protected or non-
existent blocks.
New powerful disc-based debug software.