CHAPTER 6 CAUTIONS
User’s Manual U11595EJ5V0UM
49
6.7
Bus Interface Pins
There are the following differences in the operation of bus interface pins between the IE-703002-MC and the
target device.
Table 6-3. Bus Interface Pin Operation List (1/2)
(a) During break
Internal Memory
External Memory
Memory Used by
IE-703002-MC
Internal
ROM
Internal RAM
Internal I/O
Emulation RAM
(IE-703002-MC)
Target System
Pin Name
F
R
W
R
R
W
R
W
R
W
R
W
A16 to A19
Retains the address accessed last
AD0 to AD15
Hi-Z
ASTB
H
R/W
H
Active
DSTB
H
H
LBEN
H
UBEN
H
Active
Active
WAIT
Invalid
HLDRQ
Valid
Valid
Valid
HLDAK
H or L
H or L
H or L
ST0
H
L
L
ST1
H
H
H
Remarks 1.
F:
Fetch
R:
Read
W:
Write
2.
H:
High-level output
L:
Low-level output
Hi-Z:
High impedance
When the IE-703002-MC is used for developing application systems using V850/Sxx products by connecting an
option board, apply the settings specified in the user’s manual of the option board used.
Содержание IE-703002-MC
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