Measurement Computing Micro488/p - Manual (Page 39)

Appendix A, Micro488/p Command Summary 09-26-02 A-1
Appendix A Micro488/p Command Summary
Command Code Description Page
/A /A Asserts the attention line; leaves Micro488/p in the controller active
state. 3-6
/L /L Sends the LAG command to the specified device; leaves Micro488/p in
the controller active state. 3-6
/ML /ML Places the Micro488/p in the listen state on RESUME (RS). 3-7
/MT /MT Places the Micro488/p in the talk state on RESUME (RS). 3-7
/T /T;addr Issues the talk command to the specified IEEE device. 3-8
/UL /UL Sends the UNL command to the IEEE bus; instructs all devices on the
IEEE bus to get off the IEEE bus. 3-8
/UT /UT Sends the UNT command to the IEEE bus; instructs all devices on the
IEEE bus to get off the IEEE bus. 3-9
ABORT I/O A Pulses Interface Clear (IFC) bus management line to be pulsed; forces all
IEEE bus device interfaces into a quiescent idle state. 3-9
DEVICE CLEAR C[;addr] Instructs Micro488/p to issue Device Clear (DCL) bus command; if
optional addresses are included, issues the Selected Device Clear (SDC)
command to the specified devices. 3-10
ECHO EC;n Instructs the Micro488/p to enable or disable serial echo. 3-10
ENTER ENTER[;addr] Reads data from the IEEE bus and sends it to serial port; a terminator
character, an EOI, or an ESCAPE command terminates data
input/output. 3-11
ESCAPE A
CHR$(1) Unlocks the Micro488/p from an inappropriate command; clears the
serial input (pending commands) and instructs Micro488/p to wait for
new commands. 3-12
HARDWARE
HANDSHAKE
H;n Enables or disables hardware (CTS/RTS) handshake. 3-12
IEEE BUS
TERMINATOR
TB;n Selects the IEEE bus terminator for reads from the IEEE bus; selected
terminator signifies the end of an ENTER sequence. 3-13
INIT I Provides a warm start of the interface; clears the serial input (pending
commands) and output (pending data) buffers and re-initializes the
internal IEEE controller hardware. 3-14