In the "HSTL DCI usage examples" figure, there is no termination at the driver. However, OBUF_HSTL_I_DCI and OBUF_HSTL_III_DCI are available. What kind of termination exists in these OBUFs?
OBUF_HSTL_I_DCI and OBUF_HSTL_III_DCI are not performing any termination (these I/O standards do not need driver termination).
The DCI OBUFs for these I/O standards have the same characteristic as the non-DCI OBUF.
A termination example for HSTL DCI is shown in the Virtex-II/-II Pro User Guides -> Design Considerations -> (Using) Digitally Controlled Impedance (DCI).
Virtex-II Pro
http://www.xilinx.com/support/documentation/user_guides/ug012.pdf
Virtex-II
http://www.xilinx.com/support/documentation/user_guides/ug002.pdf
Please see (Xilinx Answer 14128) for more information.
| AR# 11914 | |
|---|---|
| 日付 | 05/14/2014 |
| ステータス | アーカイブ |
| 種類 | 一般 |