NDAC
E6435
NDAC is a dedicated handshake signal line in the IEEE 488 (GPIB) interface used by devices to indicate that they have not yet accepted data.
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
GPIB signal
ⓘ
IEEE 488 signal ⓘ handshake signal line ⓘ |
| abbreviationFor | Not Data Accepted ⓘ |
| belongsTo | GPIB handshake group ⓘ |
| busCategory | control and handshake line ⓘ |
| direction | driven by listeners and talkers ⓘ |
| electricalRole | open‑collector line with wired‑OR behavior ⓘ |
| fullName | Not Data Accepted ⓘ |
| function |
indicates that addressed device has not yet accepted data
ⓘ
participates in three‑wire handshake on IEEE 488 bus ⓘ |
| handshakeRole | indicates completion of data acceptance when released ⓘ |
| logicConvention | active low ⓘ |
| relatedSignal |
DAV
ⓘ
NRFD ⓘ |
| signalPolarity |
false when line is high
ⓘ
true when line is low ⓘ |
| signalType | handshake line ⓘ |
| standardizedIn |
IEC 60488
ⓘ
IEEE 488 GPIB standard ⓘ
surface form:
IEEE 488
|
| usedBy |
GPIB controllers
ⓘ
GPIB listeners ⓘ GPIB talkers ⓘ |
| usedIn |
GPIB interface
ⓘ
IEEE 488 GPIB standard ⓘ
surface form:
IEEE 488 bus
|
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
IEEE 488