Sundance SMT381 2007 - Manual (Page 31)

RSL interface are routed to the DAC. This
is the fastest way. A 64-word (64 bits each)
FIFO converts the data into the right
format.
Figure 21: Data Source Selection
When using, the Memory available inside the DAC, any source can be selected. It will
not affect the DAC. It is recommended to keep the selected source into reset.
11.1.7 DAC Setup Registers (Write Add 0x900 – 0x905)
These registers configure the internal functionality of the DAC on the SMT381. There
are six registers – 4 data registers an address register and setup register. The address
and setup registers must be set up before the data registers. Once the data registers are
written to the data, address and setup information contained in all the registers will be
transferred to the DAC over a serial interface.
31 .. 28 27 .. 24 23 .. 20 19 .. 16 15 .. 12 11 .. 8 7 .. 4 3 .. 0
Command Address Data MSB Data LSB
0x1 0x900 Smt381SetupData Smt381SetupData
0x1 0x901 Smt381DacAddress Smt381DacAddress
0x1 0x902 Smt381DacData(LSB) Smt381DacData(LSB)
0x1 0x903 Smt381DacData Smt381DacData
0x1 0x904 Smt381DacData Smt381DacData
0x1 0x905 Smt381DacData(MSB) Smt381DacData(MSB)
Figure 22: DAC Setup Registers (Write Only)
User Manual SMT381 Page 31 of 31 Last Edited: 12/06/2007 10:43:00