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| 型號(hào)： | 21728 |
| 英文描述： | 4-Bit, Dual, Programmable Delay Line |
| 中文描述： | 接口的Am188EM的DSLAC？ / QSLAC？使用小型工業(yè)應(yīng)用筆記？ 84.0KB（PDF格式） |
| 文件頁(yè)數(shù)： | 6/11頁(yè) |
| 文件大?。?/td> | 84K |
| 代理商： | 21728 |
6
Interfacing the Am188
TM
EM Controller to the DSLAC
TM
/QSLAC
TM
Devices Using the SSI
SOFTWARE LISTING
The software listing in Appendix A is written in C and
compiled with Microsoft’s C/C++ compiler. This exam-
ple code illustrates how to read the DSLAC device’s Z
filter coefficients. The software was tested on several
of the evaluation boards available from AMD. An
ASLAC
Interface Board (ACIF) was used to load a
known set of coefficients into a DSLAC Device Low
Noise Board. An SD186EM demonstration board was
then connected in place of the ACIF Board to read back
the coefficients.
The main body of the program first initializes the vari-
ous ports, then sends a "read Z filter" command. As
noted previously, the command must be bit reversed.
The "for" loop then reads back the 14 bytes of the Z fil-
ter coefficients. The subroutines SSI_read and
SSI_write are written in assembly language for speed
and clarity. They implement the code required to send
or receive a single byte. Once again, the bytes coming
back from the DSLAC device are bit reversed.
SUMMARY
While the two serial interfaces were not designed to be
used together, they are surprisingly compatible. The
two simple fixes required to make them work together
are worth the effort to save code space and speed up
operation.
相關(guān)PDF資料 |
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| 218.032 | CAT6A F/UTP PATCH CABLE 3M BLUE |
| 218-0441R | KERAMIKWIDERST. |
| 206-0443K3 | KERAMIKWIDERST. |
| 206-0444R7 | KERAMIKWIDERSTAND |
| 210-0441R8 | KERAMIKWIDERST. |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| 217-283A | 制造商:LG Corporation 功能描述:CASE FRONT |
| 217-284B | 制造商:LG Corporation 功能描述:CASEBOTTOM |
| 217-285A | 制造商:LG Corporation 功能描述:CASETOP |
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