ProDAQ 3424 Function Card User Manual
3424-XX-UM
Copyright,
1998-2005 Bustec Production Ltd.
Page 33 of 56
010 : ADCSYNC_ST
011 : READY4DA_ST
100 : PRET_ST
101 : POSTT_ST
9
RO
h
DDSUD_ERR
– DDS External Update Signal Error
The bit is read only and is set by hardware after DDS external update signal error
happens.
This bit is cleared on the arming command or clearing command.
1 : external update signal not in phase
USAGE
If enabled (ERR4_EN bit), this bit asserts the Output Trigger and/or Direct
Error
This is fatal error
8
RO
h
SCAN_ERR
– Scan Error
The bit is read only and is set by hardware after scan error happens.
This bit is cleared on the arming command or clearing command.
1 : Scan error occurred
USAGE
If enabled (ERR4_EN bit), this bit asserts the Output Trigger and/or Direct
Error
This is fatal error
7
RO
h
MCLKRANGE_ERR
– MCLK Clock Frequency Out of Range Error
The bit is read only and is set by hardware after the frequency of the MCLK (ADC
master clock) signal goes out of allowed frequency range.
This bit is cleared on the arming command or clearing command.
1 : MCLK frequency out-of-range error occurred
USAGE
If enabled (ERR4_EN bit), this bit asserts the Output Trigger and/or Direct
Error
This is fatal error
6
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h
OUTRANGE_ERR
– Input Signal Out of Range Error
The bit is read only and is set by hardware after input signal out-of-range error
happens.
This bit is cleared on the arming command or clearing command.
1 : input signal out-of-range error occurred
USAGE
If enabled, this bit asserts the Output Trigger and/or Direct Error
This is common signal for all channels. Read CHN_RANGE_ERR bits to
detect which channel caused this error.
5
RO
h
AOVFL_ERR
– Arithmetic Overflow Error
The bit is read only and is set by hardware after arithmetic overflow error happens.
This bit is cleared on the arming command or clearing command.
1 : arithmetic overflow error occurred
USAGE
If enabled, this bit asserts the Output Trigger and/or Direct Error
4
R/WSC
0
FOVLD_ERR_DA_SKIP
– FIFO Overload Error and Data Acquisition Skip
The bit when reading returns the status of the FIFO overload event (occurs when
trying to write to a full FIFO).
When writing this bit causes the end of Data Acquisition process.
This bit is cleared on the arming command or clearing command.
Write
1 : current DA skipped
Read
1 : FIFO overload error occurred
USAGE
If enabled, this bit asserts the Output Trigger and/or Direct Error
Data Acquisition is skipped only if the card is in READY4DA_ST, PRET_ST
and POSTT_ST states, but DA_SKIP stop mode doesn’t need to be
selected.