XCS05XL Xilinx, XCS05XL Datasheet - Page 30
XCS05XL
Manufacturer Part Number
XCS05XL
Description
Spartan and Spartan-XL Families Field Programmable Gate Arrays
Manufacturer
Xilinx
Datasheet
1.XCS05XL.pdf
(82 pages)
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Spartan and Spartan-XL Families Field Programmable Gate Arrays
after the DONE pin for that device goes High. (The exact
timing is determined by development system options.)
Since the DONE pin is open-drain and does not drive a High
value, tying the DONE pins of all devices together prevents
all devices in the chain from going High until the last device
in the chain has completed its configuration cycle. If the
30
DATA BUS
PROGRAM
CCLK
INIT
8
3.3K
VCC
V CC
PROGRAM
CS1
D0-D7
INIT
CCLK
M0
Spartan-XL
Figure 27: Express Mode Circuit Diagram
DOUT
DONE
M1
www.xilinx.com
1-800-255-7778
8
DONE pin of a device is left unconnected, the device
becomes active as soon as that device has been config-
ured. Because only Spartan-XL, XC4000XLA/XV, and
XC5200 devices support Express mode, only these devices
can be used to form an Express mode daisy chain.
8
CS1
D0-D7
PROGRAM
INIT
Daisy-Chained
CCLK
M0
Spartan-XL
Optional
DONE
DOUT
M1
DS060 (v1.6) September 19, 2001
Product Specification
To Additional
Optional
Daisy-Chained
Devices
To Additional
Optional
Daisy-Chained
Devices
DS060_27_080400
R