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Atari ST family connectors pinouts

• ST power supply
• ST floppy drive power supply


• ST Monitor out
• TT Monitor out
• Falcon Monitor out


• ST joystick / mouse
• STe enhanced joystick
• MEGA ST/TT keyboard


• MIDI In and Out
• ST Modem 1
• Falcon Serial
• LAN


• ST/Falcon parallel


• ST floppy
• ST Floppy internal
• ST floppy drive IN and OUT
• ST/TT DMA ACSI port
• TT SCSI port


• ROM port


• Falcon DSP port

Atari Falcon DSP port

Canon high density D-sub 26 female at computer side

1	General Purpose 0	10	GND	19	SDMA Record Data
2	General Purpose 2	11	Sync Serial I/F Ctrl 0	20	SDMA Record Clock
3	General Purpose 1	12	Sync Serial I/F Ctrl 1	21	SDMA Record Sync
4	SDMA Play Data	13	Sync Serial I/F Ctrl 2	22	DSP Interrupt
5	SDMA Play Clock	14	GND	23	Sync Serial I/F Data Out
6	SDMA Play Sync	15	Sync Serial Data In	24	Sync Serial I/F Clock
7	Not Connect	16	GND	25	GND
8	GND	17	+12V	26	External Clock Input
9	+12V	18	GND