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ACSI PINOUT

By looking up this table you can easily make cables to connect the host adapter to the internal (in case of Mega

ST) or external ACSI connector. It is a very simple pin-to-pin cable. The only exception is the power supply to

the host adapter – only the Mega STE and Stacy has power supply on the internal ACSI port. So in addition to

the ACSI cable you will have to connect the host adapter’s pins 25, 27 and 29 to the power supply ground, and

pins 26, 28 and 30 to the power supply 5V.

Table 1. ACSI pinouts.

Signal

Mega STE

(30 pin internal)

ACSI

(DB19 male)

Mega ST

(24 pin internal)

/RESET

ACK

/CS

DRQ

IRQ

GND

1 2 3 4 5 6

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