EP4SGX290KF40C3N Altera, EP4SGX290KF40C3N Datasheet - Page 264

• Manufacturer Part Number: EP4SGX290KF40C3N
• Description: IC STRATIX IV GX 290K 1517FBGA
• Manufacturer: Altera
• Series: Stratix® IV GXr

Specifications of EP4SGX290KF40C3N

• Number Of Logic Elements/cells: 291200
• Number Of Labs/clbs: 11648
• Total Ram Bits: 17248
• Number Of I /o: 744
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 1517-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Other names: 544-2624

Figure 7–24. Stratix IV DQS Logic Block
Notes to
(1) The input reference clock for the DQS phase-shift circuitry can come from a PLL output clock or an input clock pin. For more information, refer to
(2) The dqsenable signal can also come from the Stratix IV FPGA fabric.
Figure
DQS Logic Block
DQS delay
settings from the
DQS phase-shift
circuitry
Phase offset
settings from the
DQS phase-shift
circuitry
7–24:
offsetctrlin [5:0]
Each DQS/CQ and CQn pin is connected to a separate DQS logic block, which consists of the DQS delay chains, update enable
circuitry, and DQS postamble circuitry, as shown in
delayctrlin [5:0]
6
6
DQS/CQ or
CQn Pin
<dqs_offsetctrl_enable>
1
0
6
D
Bypass
Q
Input Reference
Clock (1)
6
1
0
dqsin
DQS Delay Chain
6
D
Q
dqsupdateen
6
1
0
<dqs_ctrl_latches_enable>
6
Update
Enable
Circuitry
Figure
Resynchronization
phasectrlin[2:0]
Postamble
Enable
Clock
7–24.
1xx
000
001
010
011
dqsenablein
DQS Enable Control
dqsbusout
clk
dqsin
DQS Enable
enaphasetransferreg
<level_dqs_enable>
0
1
delayctrlin
Table 7–5 on page 7–33
0
1
dqsbusout
6
DQS bus
<delay_dqs_enable_by_half_cycle>
postamble control clock
phasectrlin
0110
0101
0100
0011
0010
0001
0000
0111
Q
4
PRE
dqsenable (2)
through
D
phaseinvertctrl
0
1
dqsenableout
Table 7–17 on page
0
1
7–40.