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OMEN KILO

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OMEN Computers - - -

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THE BOARD

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Jumpers and pin headers

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SERIAL: Serial port. Pins are RxD, TxD, GND from up to the bottom, RxD is near

the edge.

WREN: PLEASE DO NOT USE, just solder the middle pin and the left pin /close to

the BANK switch/ together. I am sorry.

BANK: EEPROM bank selector – only for AT28C256. Leave it open.

NMIX: NMI enabler. Close to disable non-maskable interrupts, open to leave it

on the application bus. Connect the 10k resistor to make it “open-collector

signal”.

Содержание Kilo

Страница 1: ......

Страница 2: ...OMEN KILO OMEN Computers https github com osmibity Page 1 OMEN Kilo issue 1 Technical Documentation...

Страница 3: ...Page 2 INTRODUCTION The OMEN Kilo computer kit is a low cost computer trainer based on the MC6809 HD6309 CPU It has these features MC6809 CPU working at 1 8432 MHz 32 kB RAM 8 kB EEPROM Serial port u...

Страница 4: ...istors push button crystals 4 Connect the power adapter and check 5 Insert the CPU into its socket keep the proper orientation and try to power it up Check if oscillator lives at CPU pin 34 6 Insert t...

Страница 5: ...s previous addresses Maddr Modify memory byte by byte Use ENTER SPACE and BACKSPACE in the same way as in DUMP Gaddr Go to program JMP W from to export memory as SREC X from to export memory as HEX st...

Страница 6: ...tom RxD is near the edge WREN PLEASE DO NOT USE just solder the middle pin and the left pin close to the BANK switch together I am sorry BANK EEPROM bank selector only for AT28C256 Leave it open NMIX...

Страница 7: ...n the application bus Connect the 10k resistor to make it open collector signal FIRQX Fast Interrupt enabler Close to disable maskable interrupts open to leave it on the application bus Connect the 10...

Страница 8: ...1 WR 2 D0 3 D1 4 D2 5 D3 6 D4 7 D5 8 D6 9 D7 10 A0 11 A1 12 A2 13 RD 14 IO1 9000h 93FFh 15 IO2 8800h 8BFFh 16 IO3 9800h 9BFFh 17 IO4 8400h 87FFh IOx signals are decoded by 74138 18 IO5 9400h 97FFh 19...

Страница 9: ...OMEN KILO OMEN Computers https github com osmibity Page 8 PERIPHERAL IC ADDRESSES ACIA 68B50 83FEh Command Register 83FFh Data Register...

Страница 10: ...OMEN KILO OMEN Computers https github com osmibity Page 9 MEMORY MAP 0000h 7FFFh System RAM 32k 8000h BFFFh I O space C000h DFFFh EEPROM 8k shadow E000h FFFFh EEPROM 8k...