HS2556EPI61H Renesas Electronics America, HS2556EPI61H Datasheet - Page 205

• Manufacturer Part Number: HS2556EPI61H
• Description: EMULATOR BASE H8SX/2556
• Manufacturer: Renesas Electronics America

Specifications of HS2556EPI61H

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

[General] page
[Device]
[Mode]
[Clock]
[Timer Resolution]
[Enable read and write on the
fly]
select [Custom] to specify the functions required for this MCU. See the
hardware manual for details.
Selects the resolution of the timer for use in execution time measurement.
The value 20 ns, 125 ns, 250 ns, 500 ns, 1 us, 2 us, 4 us, 8 us, or 16 us
can be selected.
The timer for execution time measurement has a 40-bit counter.
At 20 ns the maximum time that can be measured is about six hours, and
at 16 µs the maximum time is about 200 days.
When the counter overflows, the maximum time possible for
measurement will be displayed with prompt “>” that indicates that the
counter has overflowed.
When this box is checked, it is possible to access the target system
memory while the user program is running. Do not check this box if you
require realtime emulation.
- When accessing the internal ROM, internal RAM, or emulation memory
High-performance Embedded Workshop accesses the memory directly
as the bus mastership is released to the emulator without breaking the
user program. Therefore, the emulator uses the memory bus for up to
350 ns in reading of 1 byte (26 MHz).
- When accessing the internal I/O, DTCRAM, or user memory
Memory is accessed with breaking the user program. Therefore, the user
program stops for a maximum of 100 µs in reading 1 byte (26 MHz).
When the internal RAM is disabled, an access to this area is not available
during the user program execution.
Note:
When the content of the memory is modified during the user program
execution (e.g. modification in the [Memory] window or by the
MEMORY_EDIT command), High-performance Embedded Workshop
reads the content to update the value.
High-performance Embedded Workshop also reads the memory content
when the content has been updated by operations such as selecting
[Refresh] from the popup menu of the [Memory] window. In this case, the
content of memory is read and then updated in each of the windows.
To prevent unnecessary reading of the memory content, close the
window displaying the memory content (such as the [Memory] or
[Disassembly] window) or make the settings so that the content will not
be updated.
The [Monitor] window, or the [Watch] window that satisfies the conditions
listed below displays the memory content. Note that, however, opening
these windows does not prevent realtime operation because the method
of updating the memory content in these windows is different.
Conditions:
1. Registered symbols are only allocated to general-purpose registers.
2. Registered symbols are only allocated to the monitor range set by the
[Monitor] function (the mark R is colored in blue).
3. Registered symbols are comprised of those with the conditions 1 and 2
listed above.
Selects the MCU to be emulated. To use an MCU not included in the list,
Selects the MCU's operating mode.
Selects the speed of the MCU’s clock and sub-clock.
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