HS7727KCM02H Renesas Electronics America, HS7727KCM02H Datasheet - Page 215
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HS7727KCM02H
Manufacturer Part Number
HS7727KCM02H
Description
ON CHIP DEBUG EMULATOR W/TRACE
Manufacturer
Renesas Electronics America
Datasheets
1.HS7727KCI01H.pdf
(234 pages)
2.HS7727KCI01H.pdf
(32 pages)
3.HS7727KCI01H.pdf
(14 pages)
Specifications of HS7727KCM02H
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 215 of 234
- Download datasheet (2Mb)
For low-power consumption, the SH7727 has sleep, standby, and module standby modes.
The sleep and standby modes are switched using the SLEEP instruction. When the emulator is
used, only the sleep mode can be cleared with either the normal clearing function or with the
[Stop] button. Note that if a command has been entered in standby mode or module standby mode,
no commands can be used from the emulator. The states cannot be canceled by the [Stop] button.
Notes: 1. The memory must not be accessed or modified in sleep mode.
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 input from the user system in
command input wait state, they are not sent to the SH7727.
Note: Do not break the user program when the /RESETP, /RESETM, /BREQ, and /WAIT
The DMAC operates even when the emulator is used. When a data transfer request is generated,
the DMAC executes DMA transfer.
In the emulator, the internal I/O can be accessed from the [I/O Registers] window. However, pay
attention 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 file (SH7727.IO)
and then activate the HDI. For the I/O-register definition file, refer to the Hitachi Debugging
Interface User’s Manual.
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:
Low-Power Mode (Sleep, Standby, and Module Standby)
RESET Signals (/RESETP and /RESETM)
Direct Memory Access Controller (DMAC)
Internal I/O Register
Memory Access during Emulation
2. When the [Stop] button is clicked in sleep mode, a break does not occur immediately
signals are being low. A TIMEOUT error will occur. If the /BREQ and /WAIT
signals are fixed to low during break, a TIMEOUT error will occur at memory
access.
after executing the SLEEP instruction. The number of instructions to be proceeded
differs according to the emulator environment or operating frequency of the chip. It is
about 500 instructions when the Pentium III 500-MHz PC is used and the CPU clock is
25 MHz.
195
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