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3-26
DC and Switching Characteristics
Lattice Semiconductor
LatticeXP Family Data Sheet
LatticeXP sysCONFIG Port Timing Specifications
Over Recommended Operating Conditions
Parameter
Description
Min.
Max.
Units
sysCONFIG Byte Data Flow
tSUCBDI
Byte D[0:7] Setup Time to CCLK
7
—
ns
tHCBDI
Byte D[0:7] Hold Time to CCLK
3
—
ns
tCODO
Clock to Dout in Flowthrough Mode
—
12
ns
tSUCS
CS[0:1] Setup Time to CCLK
7
—
ns
tHCS
CS[0:1] Hold Time to CCLK
2
—
ns
tSUWD
Write Signal Setup Time to CCLK
7
—
ns
tHWD
Write Signal Hold Time to CCLK
2
—
ns
tDCB
CCLK to BUSY Delay Time
—
12
ns
tCORD
Clock to Out for Read Data
—
12
ns
sysCONFIG Byte Slave Clocking
tBSCH
Byte Slave Clock Minimum High Pulse
6
—
ns
tBSCL
Byte Slave Clock Minimum Low Pulse
8
—
ns
tBSCYC
Byte Slave Clock Cycle Time
15
—
ns
sysCONFIG Serial (Bit) Data Flow
tSUSCDI
DI (Data In) Setup Time to CCLK
7
—
ns
tHSCDI
DI (Data In) Hold Time to CCLK
2
—
ns
tCODO
Clock to Dout in Flowthrough Mode
—
12
ns
sysCONFIG Serial Slave Clocking
tSSCH
Serial Slave Clock Minimum High Pulse
6
—
ns
tSSCL
Serial Slave Clock Minimum Low Pulse
6
—
ns
sysCONFIG POR, Initialization and Wake Up
tICFG
Minimum Vcc to INIT High
—
50
ms
tVMC
Time from tICFG to Valid Master Clock
—
2
us
tPRGMRJ
Program Pin Pulse Rejection
—
7
ns
tPRGM
2
PROGRAMN Low Time to Start Configuration
25
—
ns
tDINIT
INIT Low Time
—
1
ms
tDPPINIT
Delay Time from PROGRAMN Low to INIT Low
—
37
ns
tDINITD
Delay Time from PROGRAMN Low to DONE Low
—
37
ns
tIODISS
User I/O Disable from PROGRAMN Low
—
25
ns
tIOENSS
User I/O Enabled Time from CCLK Edge During Wake-up Sequence
—
25
ns
tMWC
Additional Wake Master Clock Signals after Done Pin High
120
—
cycles
Configuration Master Clock (CCLK)
Frequency
1
Selected
Value -
30%
Selected
Value +
30%
MHz
Duty Cycle
40
60
%
1. See Table 2-10 for available CCLK frequencies.
2. The threshold level for PROGRAMN, as well as for CFG[1] and CFG[0], is determined by VCC, such that the threshold = VCC/2.
Timing v.F0.11