National Instruments Corporation GPIB-1014P User Manual page 123

Appendix C
68000
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IFC: link a6,-4
movl d1,a6@(-4)
movb#SIFC,AUXMR
movb #50,d1
IFC1: subb #1,d1
bne IFC1
movb #CIFC,AUXMR
movl a6@(-4),d1
unlk a6
rts
© National Instruments Corporation
|
| * * * * * * * * * * * * * * * * * * * * * *
| * INTERFACE CLEAR - IFC*
| * * * * * * * * * * * * * * * * * * * * * *
|
| Summary:
| - Initialize the interface function of other GPIB
| devices
|
| Assumptions on entry:
| - GPIB-1014P has been initialized
|
| Actions:
| - Assert GPIB IFC
| - Wait at least 100 microseconds
| - Unassert IFC
|
| Status on return:
| - GPIB-1014P is Active Controller
| - Interface functions of other GPIB devices are reset
| to their idle states
|
Code |
|Link
|Save d1
| Set the IFC signal
| Wait at least 100 microseconds (18 clock cycles)
|
|
| Clear IFC
|Restore d1
|
|
Comments
C-7
Sample Programs
*
*
GPIB-1014P User Manual