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4.8
When the
Serial488A
is addressed to listen, it accepts data from the
active talker and outputs this data through the serial interface. It substitutes
the selected serial terminators for the received IEEE bus terminators.
4.6.3 Device Clear
(DCL and SDC)
Device Clear resets the
Serial488A
's IEEE input and serial input
buffers. Any pending data and Service Requests (
SRQ
), including the
information they convey, are lost.
4.6.4 Interface Clear
(IFC)
IFC places the
Serial488A
in the Talker/Listener Idle State. It clears
any pending requests for service (SRQ). The condition which caused the
SRQ remains unmodified.
4.6.5 Serial Poll Enable
(SPE)
When Serial Poll Enabled, the
Serial488A
sets itself to respond to a
serial poll with its serial poll status byte if addressed to talk. When the
serial poll byte is accepted by the controller, any pending
SRQ
s are
cleared. The
Serial488A
will continue to try to output its serial poll
response until it is 'Serial Poll Disabled' by the controller.
4.6.6 Serial Poll Disable
(SPD)
Disables the
Serial488A
from responding to serial polls by the
controller.
- User’s Manual 1
- Introduction 3
- Serial488A/OEM 8
- Getting Started 11
- IEEE Addr 12
- IEEE Term 12
- Serial488/512K 17
- 8 Data Bits 7 Data Bits 18
- 1 Stop Bit 2 Stop Bits 18
- Parity Disabled 19
- Echo Disabled Echo Enabled 19
- Odd Parity Mark Parity 19
- Even Parity Space Parity 19
- RTS/CTS Xon/Xoff 20
- CR Only LF-CR 21
- LF Only CR-LF 21
- EOI Disabled EOI Enabled 22
- IEEE Address = 10 24
- RS-422 RS-232 26
- Shorting Plug 26
- DB-9 Male DB-25 Male 30
- Mini DIN8 Male DB-25 Male 30
- DB-25 Female DB-25 Male 31
- DB-9 Female DB-25 Male 31
- Controller Operation 35
- Talk Back on 39
- Time Out Disabled 39
- Time Out Enabled 39
- Serial488A 48
- Peripheral Operation 50
- SRQ on Last 53
- Terminator Disabled 53
- Terminator Enabled 53
- 1428163264128 54
- IEEE 488 Primer 60
- IEEE 488 Bus Structure 62
- Figure 5.1 62
- Service Information 71
- Sample Programs 84
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