489
Tsi578 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
B. Clocking
This appendix describes device behavior outside the
RapidIO Interconnect Specification (Revision 1.3)
recommended operating line rates and clock frequencies.
The following topics are discussed:
•
“Line Rate Support” on page 489
•
“P_CLK Programming” on page 493
B.1
Line Rate Support
The Tsi578 supports all of the
RapidIO Interconnect Specification (Revision 1.3)
specified line rates of
1.25, 2.50, and 3.125 Gbaud. The device also supports line rates that are outside of the RapidIO
specification. The ability to support multiple line rates gives the Tsi578 flexibility in both application
support and power consumption.
shows the supported line rates for the Tsi578. The Serial Port Select pin, SP_IO_SPEED[1,0]
must be set to the values shown in
to achieve the documented line rates.
Table 53: Tsi578 Supported Line Rates
a
S_CLK_p/n (MHz)
Baud Rate (Gbaud)
SP_IO_SPEED[1,0] Bit
Settings
Register Settings
153.60
1.2288
CPRI Line Rate
0,0
-
153.60
1.536
OBSAI Line Rate
0,1
-
153.60
2.4576
CPRI Line Rate
0,1
-
153.60
3.0720
CPRI Line Rate
1,0
-
156.25
1.2500
Standard RapidIO Line Rate
0,0
-
156.25
2.5000
Standard RapidIO Line Rate
0,1
-
156.25
3.1250
Standard RapidIO Line Rate
1,0
-
Содержание Tsi578
Страница 1: ...IDT Tsi578 Serial RapidIO Switch User Manual June 6 2016 Titl ...
Страница 20: ...About this Document 20 Tsi578 User Manual June 6 2016 Integrated Device Technology www idt com ...
Страница 102: ...4 Internal Switching Fabric Packet Queuing 102 Tsi578 User Manual June 6 2016 Integrated Device Technology www idt com ...
Страница 228: ...11 Signals Pinlist and Ballmap 228 Tsi578 User Manual June 6 2016 Integrated Device Technology www idt com ...
Страница 504: ...B Clocking P_CLK Programming 504 Tsi578 User Manual June 6 2016 Integrated Device Technology www idt com ...
Страница 526: ...Index 526 Tsi578 User Manual June 6 2016 Integrated Device Technology www idt com ...