HS7727KCI01H Renesas Electronics America, HS7727KCI01H Datasheet - Page 19

• Manufacturer Part Number: HS7727KCI01H
• Description: ON CHIP DEBUG EMULATOR
• Manufacturer: Renesas Electronics America

Specifications of HS7727KCI01H

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

5. Reset Signals (/RESETP and /RESETM)
Note: Do not break the user program when the /RESETP, /RESETM, /BREQ, and /WAIT
6. Direct Memory Access Controller (DMAC)
7. Memory Access during User Program Execution
8. Memory Access during User Program Break
The SH7727 reset signals (/RESETP and /RESETM) are only valid during emulation started
with clicking the GO or STEP-type button. If these signals are enabled on the user system in
command input wait state, they are not sent to the SH7727.
The DMAC operates even when the emulator is used. When a data transfer request is
generated, the DMAC executes DMA transfer.
When a memory is accessed from the memory window, etc. during user program execution,
the user program is resumed after it has stopped in the E10A emulator to access the memory.
Therefore, realtime emulation cannot be performed.
The stopping time of the user program is as follows:
Environment:
When a one-byte memory is read from the command-line window, the stopping time will be
about 35 ms.
The emulator can download the program for the flash memory area (refer to section 6.22,
Download Function to the Flash Memory Area, in the Debugger Part of the SuperH
E10A Emulator User’s Manual). Other memory write operations are enabled for the RAM
area. Therefore, an operation such as memory write or BREAKPOINT should be set only for
the RAM area. When the memory area can be written by the MMU, do not perform memory
write, BREAKPOINT, or downloading.
3. When the UBC is set to be used, do not set the UBC to the standby mode.
4. When the SLEEP instruction is executed by STEP-type commands to switch the mode
signals are being low. A TIMEOUT error will occur. If the /BREQ or /WAIT signal is
fixed to low during break, a TIMEOUT error will occur at memory access.
Host computer: 800 MHz (Pentium
Operating system: Windows
SH7727: 50 MHz (CPU clock)
JTAG clock: 15 MHz
about 500 instructions when the Pentium
frequency is 25 MHz.
to sleep, the emulator does not enter sleep mode, and execution skips to the next
instruction. Do not execute the SLEEP instruction to switch the mode to standby
because a TIMEOUT error will occur.
®
2000
®
III)
III 800-MHz PC is used and the operating
TM
Family
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