Spectrum M2p.59 Series Hardware Manual page 6

Trigger modes and appendant registers .......................................................................... 97
General Description............................................................................................................................................................ 97
Trigger Engine Overview..................................................................................................................................................... 97
Trigger masks .................................................................................................................................................................... 98
Trigger OR mask .......................................................................................................................................................... 98
Trigger AND mask........................................................................................................................................................ 99
Software trigger ............................................................................................................................................................... 100
Force- and Enable trigger .................................................................................................................................................. 101
Trigger delay ................................................................................................................................................................... 101
Trigger holdoff ................................................................................................................................................................. 102
Main analog external trigger (Ext0) .................................................................................................................................... 102
Trigger Mode............................................................................................................................................................. 103
Trigger Input Termination............................................................................................................................................ 103
Trigger level............................................................................................................................................................... 103
Detailed description of the external analog trigger modes ............................................................................................... 103
External logic trigger (X1, X2, X3) ...................................................................................................................................... 108
Trigger Mode............................................................................................................................................................. 108
Detailed description of the logic trigger modes............................................................................................................... 109
Channel Trigger ............................................................................................................................................................... 112
Overview of the channel trigger registers....................................................................................................................... 112
Channel trigger level................................................................................................................................................... 113
Detailed description of the channel trigger modes........................................................................................................... 115
Multi Purpose I/O Lines ................................................................................................. 123
On-board I/O lines (X0, X1, X2, X3) .................................................................................................................................. 123
Programming the behavior........................................................................................................................................... 123
Asynchronous I/O ...................................................................................................................................................... 124
Special behavior of trigger output................................................................................................................................. 124
Synchronous digital inputs ........................................................................................................................................... 125
Additional I/O lines with Option -DigSMB and -DigFX2 ........................................................................................................ 127
Programming the behavior........................................................................................................................................... 127
Asynchronous I/O ...................................................................................................................................................... 128
Synchronous digital inputs ........................................................................................................................................... 128
Mode Multiple Recording ............................................................................................... 131
Recording modes ............................................................................................................................................................. 131
Standard Mode.......................................................................................................................................................... 131
FIFO Mode ................................................................................................................................................................ 131
Limits of pre trigger, post trigger, memory size ..................................................................................................................... 132
Multiple Recording and Timestamps .............................................................................................................................. 133
Trigger Modes ................................................................................................................................................................. 133
Trigger Counter .......................................................................................................................................................... 133
Programming examples..................................................................................................................................................... 134
Mode Gated Sampling ................................................................................................... 135
Acquisition modes ............................................................................................................................................................ 135
Standard Mode.......................................................................................................................................................... 135
FIFO Mode ................................................................................................................................................................ 135
Limits of pre trigger, post trigger, memory size ..................................................................................................................... 136
Gate-End Alignment.................................................................................................................................................... 137
Gated Sampling and Timestamps ................................................................................................................................. 137
Trigger............................................................................................................................................................................ 138
Detailed description of the external analog trigger modes ............................................................................................... 138
Detailed description of the logic gate trigger modes........................................................................................................ 140
Channel triggers modes .............................................................................................................................................. 142
Programming examples..................................................................................................................................................... 148
ABA mode (dual timebase) ............................................................................................ 149
General information ......................................................................................................................................................... 149
Standard Mode.......................................................................................................................................................... 149
FIFO Mode ................................................................................................................................................................ 150
Limits of pre trigger, post trigger, memory size ..................................................................................................................... 150
Example for setting ABA mode: .................................................................................................................................... 151
Reading out ABA data ...................................................................................................................................................... 152
General..................................................................................................................................................................... 152
Data Transfer using DMA ............................................................................................................................................ 152
Data Transfer using Polling .......................................................................................................................................... 154
Comparison of DMA and polling commands.................................................................................................................. 155
ABA Mode and Timestamps......................................................................................................................................... 155
6 (c) Spectrum Instrumentation GmbH
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