E702196_SH7750 Datasheet, PDF (232/237 Pages) Mitsubishi Electric Semiconductor – Hitachi Microcomputer Development Environment System SH7750 E10A Emulator

16. [Memory] Window
If the following memory contents are displayed, they will be incorrect.
Word access from address 2n + 1
Longword access from address 4n + 1, 4n + 2, or 4n + 3
17. Scrolling Window During User Program Execution
Do not scroll the [Memory] and [Disassembly] windows by dragging the scroll box during
user program execution. This generates many memory reads causing the user program to stop
execution until the memory reads have been completed.
18. [I/O Registers] window
 Display and modification
• Do not change values of the User Break Controller because it is used by the emulator.
• For each Watchdog Timer register, there are two registers to be separately used for
write and read operations.
Table 6.11 Watchdog Timer Register
Register Name
WTCSR(W)
WTCNT(W)
WTCSR(R)
WTCNT(R)
Usage
Write
Write
Read
Read
Register
Watchdog timer control/status register
Watchdog timer counter
Watchdog timer control/status register
Watchdog timer counter
• The watchdog timer operates only when the user program is executed. Do not change
the value of the frequency change register in the [I/O Registers] window or [Memory]
window.
• The internal I/O registers can be accessed from the [I/O registers] window. However,
note the following when accessing the SDMR register of the bus-state controller.
Before accessing the SDMR register, specify addresses to be accessed in the I/O-
register definition files (SH7750.IO and SH7750S.IO) and then activate the HDI. For
details on I/O-register definition files, refer to the Hitachi Debugging Interface User's
Manual. Note that, however, the E10A emulator does not support the invalid module
and bit-information display functions described in section 8, Displaying Variables, on
the Hitachi Debugging Interface User's Manual.
Rev. 2.0, 01/01, page 210 of 214