EP1S10F780I6N Altera, EP1S10F780I6N Datasheet - Page 539

• Manufacturer Part Number: EP1S10F780I6N
• Description: IC STRATIX FPGA 10K LE 780-FBGA
• Manufacturer: Altera
• Series: Stratix®r

Specifications of EP1S10F780I6N

• Number Of Logic Elements/cells: 10570
• Number Of Labs/clbs: 1057
• Total Ram Bits: 920448
• Number Of I /o: 426
• Voltage - Supply: 1.425 V ~ 1.575 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 780-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -

Altera Corporation
July 2005
deserialization factor. The total width of the tx_in port of the transmitter
is equal to the number of channels multiplied by the deserialization
factor.
Outclock Divide Factor
The What is the Output data rate? parameter specifies the ratio of the
tx_outclock frequency compared to the data rate. The default value for
this parameter is the value of the deserialization factor parameter. The
tx_outclock frequency is equal to [W/B] x input clock frequency.
There is also an optional tx_coreclock port which has the same
frequency as the [W/J]
The outclock divide factor is useful for applications that do not require
the data rate to be the same as the clock frequency. For example,
HyperTransport technology uses a half-clock data rate scheme where the
clock frequency is half the data rate.
outclock divide factor for a given deserialization factor.
Output Data Rate
The What is the Output data rate parameter specifies the data rate out of
the fast PLL and determines the input clock boost/multiplication factor
needed for the transmitter. This parameter must be larger than the input
clock frequency and has a maximum rate of 840 Mbps for Stratix devices.
The input clock boost factor (W) is the output data rate divided by the
input clock frequency. The Stratix SERDES circuitry supports input clock
boost factors of 4, 7, 8, or 10. The maximum output data rate is 840 Mbps,
while the clock has a maximum output of 500 MHz.
Data Alignment with Clock
Use the What is the alignment of data with respect to tx_inclock?
parameter and the What is the alignment of tx_outclock? to align the
input and output data, respectively, with the clock. For most applications,
the data is edge-aligned with the clock. However, there are applications
where the data must be center-aligned with respect to the clock. With
Note to
(1)
Table 5–17. Deserialization Factor (J) vs. Outclock Divide Factor (B)
The clock does not have a 50% duty cycle when b=7 in x7 mode.
Deserialization Factor (J)
Table
5–17:
10
4
7
8
High-Speed Differential I/O Interfaces in Stratix Devices
×
input frequency.
Table 5–17
Stratix Device Handbook, Volume 2
Outclock Divide Factor (B)
shows the supported
1, 2, 4, 8
1, 2, 10
1, 2, 4
1,
7(1)
5–67