Technical data

FIRE Emulator for H8S and H8/300H 1 4 B a s i c s

In active mode, the power of the target is sensed and by switching down the target the emulator changes to

RESET mode. The probe is not supplied by the target power. When running without target, the target

voltage is simulated by an internal pull-up resistor.

Dualport Access

Dualport allows access to emulation RAM and onchip ROM/FLASH/RAM of the cpu, while emulation is

running. This is necessary to display variables, set breakpoints or display flag listings while the emulation is

running. Dualport access is only possible on the emulators internal RAM and not on target RAM.

NOTE: The DTC-RAM is physically internal even at the bondout cpu. This means that this memory can’t be

changed via dualport access. All accesses of the cpu to the DTC-RAM are shadowed to an emulation

RAM, so that the memory contents can be read via dualport.

Reset CPU is in reset.

AloneInternal CPU is running with internal clock. Bus strobe signals (AS, HWR, LWR, WAIT)

are disabled. This mode is used for 'standalone' operation.

AloneExter-

nal

CPU is running with external clock. Bus strobe signals are disabled.

Emulation

Internal

CPU is running with internal clock. Bus strobe output signals are enabled.

Emulation

External

CPU is running with external clock. Bus strobe output signals are enabled.

Format: SYStem.MemAccess <option>

<option>: Request

Denied

Request The CPU bus access is stopped by a dedicated bondout bus-request signal for

performing a dualport access.

Denied Dualport access is not possible while the emulation is running.