taskit 386EX-Card III

Technical details

1 MB (max. 4 MB) battery-supported SRAM (of the standard 1 MB, a maximum of 896 kB is acccessible as DOS main memories)
4 MB (optionally 2 MB or 8 MB) Flash memory as Flash disk and directly addressable memory
256-byte serial EEPROM
Optional: CompactFlash disk (bootable, mapped as a disk drive)

Two PC-compatible serial interfaces (8250-compatible, TTL level)
PIF bus (universal 8-bit bus with 64 I/O addresses)
IDE interface for hard drive, CD drive assembly, or IDE floppy drive assembly - among other possibilities
Optional (instead of IDE): socket for CompactFlash (max. 4 GB)
On-board Ethernet, TWI (I²C compatible), JTAG interface
1.84 MHz output, e. g. for external UART, RTC interrupt output
5 I/O ports, individually programmable as input or output
8 interrupt inputs (IRQs), timer inputs and outputs

PC-compatible embedded BIOS, configuration menu in the BIOS Setup
FreeDOS, compatible to MS-DOS 7.1
Optional Bundle: Datalight Sockets + ROM-DOS (OEM-License) for DOS, TCP/IP Stack

Supply voltage: 5 V (+/- 5%), optionally 3.3 V
Energy consumption: max. 350 mA at 33 MHz clockspeed
Idle mode: 32 mA (internal interfaces remain in operation)
Power-down mode: 4 mA, can be terminated only by external interrupts or NMI (non-maskable interrupt)
Voltage comparator for power-failure monitoring (triggers NMI when power supply malfunctions)