Technical data

FIRE Emulator for H8S and H8/300H 21 Special Settings and Restrictions H8S/21xx

Special Settings and Restrictions H8S/21xx

Restrictions for H8S/21xx

SYStem.CPU Processor type

This selects the exact derivative within a CPU family.

SYStem.CPU Operation mode

This option specifies operation mode of the cpu, which is normally defined with the MD0..1 pins of the cpu.

But, the values of this pins in the target are not responsible for the operation mode, so that the pin levels can

differ from the emulator setting.

Dual-purpose IO-Pins The dual-purpose IO-Pins BREQ

and IRQ0..7 and don’t have a pull-

up resistor in the emulator.

This pins work as port pins after reset. If you change the pin

functions so that this pins have bus control or interrupt function, then

the emulator will malfunction in stand-alone mode because of the

floating inputs.

Format: SYStem.CPU <type>

<type>: H8S2120 | H8S2122 | H8S2123 | H8S2124 | H8S2126 | H8S2127 | H8S2128

H8S2130 | H8S2132 | H8S2133 | H8S2134 | H8S2137 | H8S2138

H8S2142 | H8S2143 | H8S2144 | H8S2147 | H8S2148

Format: SYStem.CPU <mode>

<mode>: EXP64K8

SINGLE64K

SINGLE16M

EXP64K8 Expanded mode with 64 KByte address range, 8-bit initial bus width and onchip

ROM disabled