Global bus, Constraints file signals names, Figure 6: global bus constraints file signal names – Sundance SMT387 User Manual
Page 22: Table 3: rsl speed vs. fpga speed grade, Gbus rw1n
Version 1.0.3
Page 22 of 42
SMT387 User Manual
Speed grade
-7
-6
-5
RSL speed (Gbps)
3.125
3.125
2.0
Table 3: RSL Speed vs. FPGA Speed Grade
Based on the above, the 4 bi-directional links of SMT387 can provide a combined
bandwidth of up to 12.5Gbps.
The RSL connector is J3. (See
Figure 10: SMT387 Components placement-Top view)
works.
Global bus
The global bus is compatible with the TIM standard.
The Global Bus Interface is a memory Interface that follows Texas Instruments’
TMS320C4x External Bus operation standard. Additional information on the standard
is available in the
chapter 9:
External Bus operation.
When Writing, the FPGA sends data across the global bus to the external device.
When Reading, the external device writes data across the global bus to the FPGA.
Constraints File Signals Names
GBUS RW1N
Global Bus
signal
Active level:
N = Active low
STATn(3:0) are also global
Bus signals
Figure 6: Global Bus constraints file signal names.