DS588 Datasheet, PDF (12/24 Pages) Xilinx, Inc – Programmable interrupt generation

XPS Delta-Sigma Digital to Analog Converter (DAC) (v1.01a)
Table 1: XPS Delta-Sigma DAC I/O Signals (Cont’d)
Port
Signal Name
Interface
I/O
Initial
State
Description
P25 PLB_rdPendPri[0 : 1]
PLB
I
- PLB pending read request priority
P26 PLB_wrPendPri[0 : 1]
PLB
I
- PLB pending write request priority
P27 PLB_reqPri[0 : 1]
PLB
I
- PLB current request priority
PLB Slave Interface Signals
P28 Sl_addrAck
PLB
O
0 Slave address acknowledge
P29 Sl_SSize[0 : 1]
PLB
O
0 Slave data bus size
P30 Sl_wait
PLB
O
0 Slave wait indicator
P31 Sl_rearbitrate
PLB
O
0 Slave rearbitrate bus indicator
P32 Sl_wrDack
PLB
O
0 Slave write data acknowledge
P33 Sl_wrComp
PLB
O
0 Slave write transfer complete indicator
P34
Sl_rdBus[0 :
C_SPLB_DWIDTH - 1]
PLB
O
0 Slave read data bus
P35 Sl_rdDAck
PLB
O
0 Slave read data acknowledge
P36 Sl_rdComp
PLB
O
0 Slave read transfer complete indicator
Sl_MBusy[0 :
P37 C_SPLB_NUM_MAST
PLB
ERS - 1]
O
0 Slave busy indicator
Sl_MWrErr[0 :
P38 C_SPLB_NUM_MAST
PLB
ERS - 1]
O
0 Slave write error indicator
Sl_MRdErr[0 :
P39 C_SPLB_NUM_MAST
PLB
ERS - 1]
O
0 Slave read error indicator
Unused PLB Slave Interface Signals
P40 Sl_wrBTerm
PLB
O
0 Slave terminate write burst transfer
P41 Sl_rdWdAddr[0 : 3]
PLB
O
0 Slave read word address
P42 Sl_rdBTerm
PLB
O
0 Slave terminate read burst transfer
Sl_MIRQ[0 :
P43 C_SPLB_NUM_MAST
PLB
ERS -1]
O
0 Master interrupt request
DAC Signals
P44 Dac_clk_en
System
I
DAC clock enable. This allows the
- SPLB_Clk to clock the sigma latch and the
D flip-flop.
P45 Read_en
System
I
-
Read enable. A new value is read from the
FIFO when this input is high.
P46 Dac_Out
System
O
0
DAC output. This is the pulse string that
drives the external low pass filter.
Delta-Sigma DAC Design Parameters
To allow the user to create a XPS Delta-Sigma DAC that is uniquely tailored for the user’s system,
certain features are parameterizable in the XPS Delta-Sigma DAC design. This allows the user to have
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DS588 December 2, 2009
Product Specification