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TPMC533 User Manual Issue 1.0.1
Page 45 of 107
3.2.1.6.2
DAC Sequencer Status Register (0x2EC)
Bit
Symbol
Description
Access
Reset
Value
31:21
-
Reserved
-
-
20
RD_DMA_TERM
DMA Buffer Termination
The end of the DMA Buffer was reached (all values have
been read out of the DMA Buffer and written to the FIFO).
This bit is automatically cleared when a new DMA Buffer
is provided by writing to the DMA Buffer Length Register.
R
0
19
-
Reserved
-
-
18
RD_DMA_ERR
DMA Error
A PCI Master Abort occurred because the addressed PCI
Target did not respond or a PCI Target Abort occurred
because the addressed PCI Target detected a fatal error.
In case of an error, the DMA Controller operation is
automatically stopped.
This bit is cleared when the DMA Controller is disabled.
R
0
17
RD_DMA_BUSY
DMA Busy
Indicates that the DMA Controller is currently busy
(active).
R
0
16
RD_DMA_IDLE
DMA Idle
Indicates that the DMA Controller is currently in Idle State.
A DMA transfer may be started (a DMA buffer may be
provided) by writing to the DMA Buffer Length Register.
R
0
15:7
-
Reserved
-
-
6
OU_FRAME_ERR
Output Unit Frame Error
A Frame Trigger event occurs, but the configured Number
of Conversions has not been processed so far.
In case of this error, the conversion process is terminated
(no more conversion pulses are generated) and the
Output Unit operation is stopped.
This bit is automatically cleared when the Output Unit is
disabled.
R
0
5
TIMING_ERR
Output Unit DAC Timing Error
The DAC Sequencer's Conversion Rate requests the next
conversion, but at least one of the involved DACs does
not allow a conversion at the moment because a serial
data transfer is about to start or has just been finished.
In case of this error, the conversion process is terminated
(no more conversion pulses are generated) and the
Output Unit operation is stopped. This bit is automatically
cleared when the Output Unit is disabled.
R
0
4
DATA_ERR
Output Unit Data Underrun Error
The DAC Sequencer's Conversion Rate requests the next
conversion, but not all DACs are properly pre-loaded with
data.
In case of this error, the conversion process is terminated
(no more conversion pulses are generated) and the
Output Unit operation is stopped.
This bit is automatically cleared when the Output Unit is
disabled.
R
0