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3.1 Function Specifications■Function Specifications
Table 3.1-1 lists the major function specifications of the adapter. Figure 3.1-1 is a block diagram of
external-memory emulation.
Table 3.1-1 Adapter Function Specifications
*1 : Theevaluation MCU must support the external-memory emulation feature. The total amount
of memory available depends on the memory capacity of the memory board, its memoryca-
pacity select switch, and the settings of the evaluation MCU. Refer to the "Evaluation MCU
Hardware Manual" or Please ask, when unknownbefore use. For details, see Section 5.4 "Ex-
ternal-Memory Emulation Settings."
Note also that this function is added to the external bus of the evaluation MCU. Before using
the function, read Chapter6 "Cautions" carefully.
*2 : This function assumes that the evaluation M CU supports the power-on debug feature. Refer to
the "Evaluation MCU Hardware Manual" or Please ask, when unknownbefore use.
Table 3.1-1 liststhe major function specifications of the adapter.
Item Description
Adapter Function Servingas the adapter used in combinati onwith th eDS U-FR emulator and header
toprovide connection between the emulator and evaluation MCU and between the
evaluation MCU and user system.
External trace memory Supportingthe external trace function. Trace length of 64 K frames
Internal ROM emulation Supporting the internal ROM emulationmemory function. 1 megabytes max. *1
External-memory emulation
Supportingthe external-memory emulation *2function. Capable of setting RAM/
ROM. This function is implemented by mounting an optional memory board on
the adapter board.
Memory capacity
switching
Capable of selecting the capacity of the memoryb oard
from among seven steps between 2Mwords and 32K
words(1word=16bits).
Memory connection
Capable of disconnecting address lines disabled by the
memorycapacity switching function from buffers and us-
ing them as user resources instead.
Also capable of reducingthe load applied during use of
such address lines as user resources by disconnecting
themeven when the external-memory emulation function
is not used.
Power-on debugging Supportingthe power-on debug function *3which runs a program immediately af-
ter the power-on sequenceof the evaluation MCU.
Jumper plugs Thejumper plugs on the adapter board can be used to make various settings of the
adapter.
Clock input IC sockets The IC sockets for oscillator on the adapter board supply clock signals from the
adapter to the main clock (X0/X1) and subclock(X0A/X1A) pins of the evalua-
tion MCU.
Chapter 3 Functions