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<< Contents
<< Workbar
<< WorkBar Tabs
<< Trigger Tab
<< Serial Bus Trigger
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The logic analyzer triggers when the packet matches the TriggerForm values.
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Four SDIO trigger types are provided.
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Type = Series: Command Only
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Count
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Select the number of commands in the series.
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The Appendices define each model's trigger limits.
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Direction Bit
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Select "Command", "Response", or "Any".
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Qualifier
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Select the "=" or "!=" qualifier for each command in the series.
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Command
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Select each command in the series.
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The commands available for triggering depends on the Mode option selected in the Serial Tab. The Mode can be SDIO, MMC, or eMMC.
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If commands are missing from the list box, or extra commands are listed, then the wrong Mode option was selected in the serial bus definition.
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Type = Series: 1 Full Command Packet
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Cmd Size
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Select the "48-bit packet" or "136-bit packet" size.
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Direction Bit
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Select "Command", "Response", or "Any".
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Qualifier
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Select the "=" or "!=" qualifier for the command.
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Command
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Select the command.
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The commands available for triggering depends on the Mode option selected in the Serial Tab. The Mode can be SDIO, MMC, or eMMC.
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If commands are missing from the list box, or extra commands are listed, then the wrong Mode option was selected in the serial bus definition.
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Data
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Enter the command data values. Command data values use the D0 signal in SDR mode.
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Base
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Click the "Hex" or "Binary" button to choose the numeric base for the command data edit boxes. This option is cosmetic and has no affect on the trigger behavior.
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Type = Series: Command With Data Transfer
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Direction Bit
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Select "Command", "Response", or "Any".
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Qualifier
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Select the "=" or "!=" qualifier for the command.
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Command
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Select the command.
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The commands available for triggering depends on the Mode option selected in the Serial Tab. The Mode can be SDIO, MMC, or eMMC.
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If commands are missing from the list box, or extra commands are listed, then the wrong Mode option was selected in the serial bus definition.
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Bytes
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Select the number of data transfer bytes.
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The Appendices define each model's trigger limits.
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Data
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Enter the data transfer values. Data transfers use the D0 through D7 signals in either SDR or DDR mode.
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The selected command defines how many Dx signals are used to transfer the data.
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The selected command defines if SDR or DDR mode is used.
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Data transfers are assumed to occur after the command is sent on the CMD signal. The first data byte must occur more than 2 clocks after the end of the command.
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The CMD signal is ignored once the requested command is found and the trigger begins following the data signals. Any number of non-matching commands may occur during the data transfer. Once the command is found, the trigger resets only when a non-matching data value is found.
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Base
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Click the "Hex" or "Binary" button to choose the numeric base for the data transfer edit boxes. This option is cosmetic and has no affect on the trigger behavior.
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Copyright and trademark information
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