tx2bit.pad

以LVDS设计为例学习ISE中的时序分析以及低层布局器的使用方法 在底层布局器中对LVDS管脚进行约束的方法

Release 4.2i - Par E.35
Copyright (c) 1995-2001 Xilinx, Inc.  All rights reserved.

Tue Dec 17 10:05:48 2002

Xilinx PAD Specification File
*****************************

Input file:       par_temp.ncd
Output file:      tx2bit.ncd
Part type:        xcv1000e
Speed grade:      -6
Package:          hq240

Pinout by Signal Name:
--------------------------|-----------------|--------|-----------|-------------|----------|----------|------|----------|-----------|---------|-----------|
       Signal Name        |    Pin Name     | Pin    | Direction | IO Standard |IO Bank # |Drive (mA)| Slew | Pullup   | IOB Delay | Voltage |Constraint |
                          |                 | Number |           |             |          |          | Rate | Pulldown |           |         |           |
--------------------------|-----------------|--------|-----------|-------------|----------|----------|------|----------|-----------|---------|-----------|
 ck (L33N_YY)             | L33N_YY         | P113   | OUTPUT    | LVDS(33N)   | 4        | 12*      | SLOW*| NONE**   | ***       |         | LOCATED   |
 ck_x (L33P_YY)           | L33P_YY         | P114   | OUTPUT    | LVDS(33P)   | 4        | 12*      | SLOW*| NONE**   | ***       |         | LOCATED   |
 clk                      |                 | P213   | INPUT     | LVTTL       | 0        | 12*      | SLOW*| NONE**   | ***       |         | LOCATED   |
 clk4x                    |                 | P89    | INPUT     | LVTTL       | 5        | 12*      | SLOW*| NONE**   | ***       |         | LOCATED   |
 da (L34N_YY)             | L34N_YY         | P110   | OUTPUT    | LVDS(34N)   | 4        | 12*      | SLOW*| NONE**   | ***       |         | LOCATED   |
 da_x (VREF)              | VREF            | P111   | OUTPUT    | LVDS        | 4        | 12*      | SLOW*| NONE**   | ***       |         | LOCATED   |
 db (L32N_YY)             | L32N_YY         | P117   | OUTPUT    | LVDS(32N)   | 4        | 12*      | SLOW*| NONE**   | ***       |         | LOCATED   |
 db_x (L32P_YY)           | L32P_YY         | P118   | OUTPUT    | LVDS(32P)   | 4        | 12*      | SLOW*| NONE**   | ***       |         | LOCATED   |
--------------------------|-----------------|--------|-----------|-------------|----------|----------|------|----------|-----------|---------|-----------|

Pinout by Pin Number:
--------|--------------------------|-----------------|-----------|-------------|----------|----------|------|----------|-----------|---------|-----------|
 Pin    |       Signal Name        |    Pin Name     | Direction | IO Standard |IO Bank # |Drive (mA)| Slew | Pullup   | IOB Delay | Voltage |Constraint |
 Number |                          |                 |           |             |          |          | Rate | Pulldown |           |         |           |
--------|--------------------------|-----------------|-----------|-------------|----------|----------|------|----------|-----------|---------|-----------|
 P1     |                          | GND             |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P2     |                          | TMS             |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P3     |                          |                 | UNUSED    | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P4     |                          | L63P            |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P5     |                          | VREF            |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P6     |                          |                 | UNUSED    | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P7     |                          |                 | UNUSED    | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P8     |                          | GND             |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P9     |                          | VREF            |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P10    |                          |                 | UNUSED    | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P11    |                          | VREF            |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P12    |                          | VREF            |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P13    |                          |                 | UNUSED    | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P14    |                          | GND             |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P15    |                          | VCCO            |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P16    |                          | VCCINT          |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       | 1.8     |           |
 P17    |                          | L59P_YY         |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P18    |                          | L59N_YY         |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P19    |                          | VREF            |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P20    |                          |                 | UNUSED    | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P21    |                          |                 | UNUSED    | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P22    |                          | GND             |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P23    |                          | VREF            |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P24    |                          |                 | UNUSED    | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P25    |                          | VCCO            |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P26    |                          | VREF            |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P27    |                          | L56P_YY         |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P28    |                          | IRDY_L56N_YY    |           | LVTTL*      | 7        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P29    |                          | GND             |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P30    |                          | VCCO            |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P31    |                          | TRDY            |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P32    |                          | VCCINT          |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       | 1.8     |           |
 P33    |                          | VREF            |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P34    |                          | L55N            |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P35    |                          |                 | UNUSED    | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P36    |                          | VREF            |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P37    |                          | GND             |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P38    |                          |                 | UNUSED    | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P39    |                          |                 | UNUSED    | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P40    |                          | VREF            |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P41    |                          | L52P_YY         |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P42    |                          | L52N_YY         |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P43    |                          | VCCINT          |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       | 1.8     |           |
 P44    |                          | VCCO            |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P45    |                          | GND             |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P46    |                          |                 | UNUSED    | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P47    |                          | VREF            |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P48    |                          | VREF            |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P49    |                          |                 | UNUSED    | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P50    |                          | VREF            |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P51    |                          | GND             |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P52    |                          |                 | UNUSED    | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P53    |                          |                 | UNUSED    | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P54    |                          | VREF            |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P55    |                          | VCCO            |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P56    |                          | L48P_YY         |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P57    |                          | L48N_YY         |           | LVTTL*      | 6        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P58    |                          | M1              |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P59    |                          | GND             |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P60    |                          | M0              |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P61    |                          | VCCO            |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P62    |                          | M2              |           | LVTTL*      |          | 12*      | SLOW*| NONE**   | ***       |         |           |
 P63    |                          | L47N_YY         |           | LVTTL*      | 5        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P64    |                          | L47P_YY         |           | LVTTL*      | 5        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P65    |                          | L46N            |           | LVTTL*      | 5        | 12*      | SLOW*| NONE**   | ***       |         |           |
 P66    |                          | VREF            |           | LVTTL*      | 5        | 12*      | SLOW*| NONE**   | ***       |         |           |