R
XC4000XLA/XV Field Programmable Gate Arrays
VCC
8
To Additional
Optional
Daisy-Chained
Devices
M0
M1
M2
M0
M1
M2
CS1
DATA BUS
8
VCC
D0-D7
DOUT
8
CS1
D0-D7
DOUT
4000XLA/XV
4.7K
PROGRAM
INIT
PROGRAM
INIT
CCLK
DONE
Optional
Daisy-Chained
4000XLA/XV
PROGRAM
INIT
CCLK
DONE
CCLK
To Additional
Optional
Daisy-Chained
Devices
6
99010800
Figure 5: Express Mode Circuit Diagram
Table 8: Express Mode Programming Switching Characteristic
Description
INIT (High) setup time
D0 - D7 setup time
D0 - D7 hold time
CCLK High time
CCLK Low time
CCLK Frequency
Symbol
T
IC
T
DC
T
CD
T
CCH
T
CCL
F
CC
Min
5
20
0
45
45
Preliminary
Max
Units
µs
ns
ns
ns
ns
MHz
CCLK
10
DS015 (v1.3) October 18, 1999 - Product Specification
6-165
XILINX [ XILINX, INC ]
