
Virtex-4 FPGA Data Sheet: DC and Switching Characteristics
DS302 (v3.7) September 9, 2009 www.xilinx.com
Product Specification 36
Configuration Switching Characteristics
Tabl e 43 : Configuration Switching Characteristics
Symbol Description
Speed Grade
Units-12 -11 -10
Power-up Timing Characteristics
T
CONFIG
(1,2)
Maximum time to configure device after
V
CCINT
has been applied.
10 10 10 minutes
T
PL
Program Latency 0.5 0.5 0.5
µs/frame,
Max
T
POR
Power-on-Reset T
PL
+10 T
PL
+10 T
PL
+10 ms, Max
T
ICCK
CCLK (output) delay 500 500 500 ns, Min
T
PROGRAM
Program Pulse Width 300 300 300 ns, Min
Master/Slave Serial Mode Programming Switching
T
DCC
/ T
CCD
DIN Setup/Hold, slave mode
0.5
1.0
0.5
1.0
0.5
1.0
ns, Min
T
DSCK
/ T
SCKD
DIN Setup/Hold, master mode
0.5
1.0
0.5
1.0
0.5
1.0
ns, Min
T
CCO
DOUT 7.5 7.5 7.5 ns, Max
T
CCH
High Time 2.0 2.0 2.0 ns, Min
T
CCL
Low Time 2.0 2.0 2.0 ns, Min
F
CC_SERIAL
Maximum Frequency, master mode with
respect to nominal CCLK.
100 100 100 MHz, Max
F
MAX_SLAVE
/ F
MAX_ICAP
Maximum Frequency, slave mode external
CCLK
100 100 100 MHz, Max
F
MCCTOL
Frequency Tolerance, master mode with
respect to nominal CCLK.
±50 ±50 ±50 %
SelectMAP Mode Programming Switching
T
SMDCC
/ T
SMCCD
SelectMAP Data Setup/Hold
2.0
0.0
2.0
0.0
2.0
0.0
ns, Min
T
SMCSCC
/ T
SMCCCS
CS_B Setup/Hold
1.0
0.5
1.0
0.5
1.0
0.5
ns, Min
T
SMCCW
/ T
SMWCC
RDWR_B Setup/Hold
6.0
1.0
6.0
1.0
6.0
1.0
ns, Min
T
SMCKBY
BUSY Propagation Delay 8.0 8.0 8.0 ns, Max
F
CC_SELECTMAP
Maximum Frequency, master mode with
respect to nominal CCLK.
100 100 100 MHz, Max
F
MAX_SELECTMAP
Maximum Configuration Frequency, slave
mode external CCLK
100 100 100 MHz, Max
F
MAX_READBACK
Maximum Readback Frequency 80 80 80 MHz, Max
F
MCCTOL
Frequency Tolerance, master mode with
respect to nominal CCLK.
±50 ±50 ±50 %
T
SMCO
SelectMAP Readback Clock-to-Out 8.0 8.0 8.0 ns, Max