Measurement-computing Micro 488/EX rev.2.1 Instrukcja Użytkownika Pobierz pdf (Strona 77)

Section 5 Command Descriptions

5.7

Active Controller CA

Peripheral (Not Active Controller) *CA

Active System Controller SC•CA

System Controller, Not Active Controller SC•*CA

Not System Controller, Not Active Controller *SC•*CA

Not System Controller, Active Controller *SC•CA

5.2.4 Bus States

This section describes the bus command and data transfers using IEEE

bus mnemonics abbreviated as follows:

DIO lines

87 65 43 21

ATN Attention

data Data String

DCL Device Clear x 0 0 1 0 1 0 0

GET Group Execute Trigger x 0 0 0 1 0 0 0

GTL Go To Local x0 00 00 01

IFC Interface Clear

LAG Listen Address Group x 0 1 a d d r n

LLO Local Lock Out x 0 0 1 0 0 0 1

MLA My Listen Address x 0 1 a d d r n

MTA My Talk Address x 1 0 a d d r n

PPC Parallel Poll Configure x 0 0 0 0 1 0 1

PPD Parallel Poll Disable x 1 1 1 0 0 0 0

PPE Parallel Poll Enable x 1 1 0 S P3 P2 P1

PPU Parallel Poll Unconfigure x 0 0 1 0 1 0 1

REN Remote Enable

SDC Selected Device Clear x 0 0 0 0 1 0 0

SPD Serial Poll Disable x 0 0 1 1 0 0 1

SPE Serial Poll Enable x0 01 10 00

SRQ Service Request

TAG Talker Address Group x 1 0 a d d r n

TCT Take Control x 0 0 0 1 0 0 1

UNL Unlisten x 0 1 1 1 1 1 1

UNT Untalk x1 01 11 11

(x = "don't care")

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 217 218

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Measurement-computing Micro 488/EX rev.2.1 Instrukcja Użytkownika Strona 77