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xCORE-Analog sliceKIT Hardware Manual
Disable
Figure 4:
D1, D10 and D11
SPI Select
Flow Diagram
If not in this mode, the devices will boot from SPI or xCONNECT link as appropriate.
2.6 xCONNECT Links
The Chain Connector contains two 5-bit xCONNECT links, XLA and XLB, which
can be used for chaining sliceKIT Core Boards together. The links from Tile 0 are
connected to the Chain Connector and the Star Slot. The links from Tile 1 are
connected to the Square Slot.
The only complication in this system is use of the xSCOPE 2-bit xCONNECT Link.
This link overlaps a 4 bit port on the Star Slot connector so it would not be possible
to use this for user I/O at the same time as xSCOPE.
To work around this, a switch is present on the XSYS adapter board to either enable
or disable the xSCOPE xCONNECT Link.
When disabled, these pins are disconnected from the Chain Connector and are free
for use on the Star Slot. When enabled they will work as an xCONNECT link and
hence will appear on the relevant pins of the Star Slot.
It is recommended that if a sliceCARD is used in the Star Slot the xSCOPE switch is
off on the XSYS Adaptor Card to ensure correct operation of the sliceCARD in the
Star slot.
XM005221A
Reset
D42 = 0
D43 = X
SPI = EN
Boot
D42 = 0
D43 = X
SPI = EN
D42 =
D43 = 1
SPI = DIS
D42, D43,D0,
available
Enable
D42 =
D43 = 0
SPI = EN
D42 and D43 available
D0, D1, D10 and D11
used by SPI
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