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參數(shù)資料
| 型號： | H8-300 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | In-Circuit Emulator for Renesas H8/300 and H8/500 |
| 中文描述： | 在電路瑞薩H8/300和H8/500仿真 |
| 文件頁數(shù)： | 5/53頁 |
| 文件大小： | 653K |
| 代理商： | H8-300 |
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ICE-H8
Features
TRACE32 - Technical Information
5
Dual-port Access
All TRACE32 memories are dual-
ported. The dual-port access makes it
possible to display and modify the con-
tents of the overlay memory, to set or
delete breakpoints or use the flag
memory while the application is run-
ning in real-time.
The H8 has four dual-port modes:
J
Nodelay
J
Wait
J
ClkSteal
J
Idle
In
Nodelay
mode, the dual-port access
is inserted in the regular bus cycles,
generated by the CPU. This means
that the CPU runs in real time during
the dual-port access.
In
Wait
mode, wait states are inserted
for the dual-port access via the wait
pin. This is only possible, if the corre-
sponding pins is configured as the wait
pin.
In
ClkSteal
mode, the CPU clock is
stopped for some cycles during the
dual-port access. This works only if the
emulator uses the internal VCO clock.
In
Idle
mode, the emulator waits on idle
cycles of the CPU to perform the dual-
port access. This cycles are generated
for example during subroutine jumps.
In the
Denied Mode
the dual-port
access is switched off.
Dual port access modes
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相關(guān)代理商/技術(shù)參數(shù) |
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