Measurement Computing Digital HS User Manual
Page 24
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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).