Measurement-computing Digital HS Manuale Utente Scaricare il pdf (Pagina 24)

1 3456782

88 168421

DIS IEEE ADDRESS

I

N

O

U

T

MODE

NDAC HOLDOFF ENABLE

1

0

16 16

1 3456782

88 168421

DIS IEEE ADDRESS

I

N

O

U

T

MODE

NDAC HOLDOFF ENABLE

1

0

16 16

16-Bit Input Mode Selected

(default)

8-Bit Input Mode Selected

Input Port Mode Selection Switch

2.3.2 Output Port Mode Selection

The switch labeled MODE OUT selects either 8-bit or 16-bit output port operation. In

8-bit mode, 8-bit data are transferred to the second byte port with the IEEE 488 bus

EOI line driving the oEND output. In 16-bit mode, the first eight bits of data are

transferred to the first byte port followed by the next eight bits with EOI to the second

byte port. The user connects the external device to correspond to the desired byte

ordering (most significant byte first or least significant byte first).

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