XC5VSX50T-3FF1136C Xilinx Inc, XC5VSX50T-3FF1136C Datasheet - Page 328

• Manufacturer Part Number: XC5VSX50T-3FF1136C
• Description: IC FPGA VIRTEX-5 50K 1136FBGA
• Manufacturer: Xilinx Inc
• Series: Virtex™-5 SXTr

Specifications of XC5VSX50T-3FF1136C

• Number Of Logic Elements/cells: 52224
• Number Of Labs/clbs: 4080
• Total Ram Bits: 4866048
• Number Of I /o: 480
• Voltage - Supply: 0.95 V ~ 1.05 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 1136-BBGA, FCBGA
• For Use With: HW-V5-ML506-UNI-G - EVALUATION PLATFORM VIRTEX-5HW-AFX-FF1136-500-G - BOARD DEV VIRTEX 5 FF1136
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -

Chapter 7: SelectIO Logic Resources
328
Module Reset - RST
The IODELAY reset signal, RST, resets the delay element to a value set by the
IDELAY_VALUE or ODELAY_VALUE attribute. If these attributes are not specified, a
value of zero is assumed. The RST signal is an active-High reset and is synchronous to the
input clock signal (C).
The control pins are summarized in
Table 7-8: Control Pin Descriptions
Increment/Decrement Signals - CE, INC
The increment/decrement is controlled by the enable signal (CE). This interface is only
available for the IDELAY mode, when IDELAY_TYPE = VARIABLE.
As long as CE remains High, IDELAY will increment or decrement by T
every clock (C) cycle. The state of INC determines whether IDELAY will increment or
decrement; INC = 1 increments, INC = 0 decrements, synchronously to the clock (C). If CE
is Low the delay through IDELAY will not change regardless of the state of INC.
When CE goes High, the increment/decrement operation begins on the next positive clock
cycle. When CE goes Low, the increment/decrement operation ceases on the next positive
clock cycle.
IODELAY is a wrap-around programmable delay element. When the end of the delay
element is reached (tap 63) a subsequent increment function will return to tap 0. The same
applies to the decrement function: decrementing below zero moves to tap 63. The
increment/decrement operation is summarized in
Table 7-9: Increment/Decrement Operations
Notes:
1. RST takes precedence over CE and INC.
Reset to IDELAY_VALUE
Increment tap count
Decrement tap count
No change
INC
RST
Pin
CE
Input
Input
Input
Type
Operation
www.xilinx.com
Value
1
1
1
Table
Increment/decrement number of tap delays
Enable increment/decrement function
Reset delay element to pre-programmed value. If no
value programmed, reset to 0
7-8.
Table
RST
1
0
0
0
Description
7-9.
Virtex-5 FPGA User Guide
UG190 (v5.3) May 17, 2010
CE
x
1
1
0
IDELAYRESOLUTION
INC
x
1
0
x