TR5-Lite User Manual
61
June 20, 2018
Figure 5-3
Block Diagram of SI570 Controller IP
Using SI570 Controller IP
lists the instruction ports of SI570 Controller IP
Table 5-3
SI570 Controller Instruction Ports
Port
Direction
Description
iCLK
input
System Clock (50Mhz)
iRST_n
input
Synchronous Reset (0: Module Reset, 1:
Normal)
iStart
input
Start to Configure
(
positive edge trigger
)
iFREQ_MODE
input
Setting SI570 Output Frequency Value
oController_Ready output
SI570 Configuration status ( 0: Configuration in
Progress, 1: Configuration Complete)
I2C_DATA
inout
I2C Serial Data to/from SI570
I2C_CLK
output
I2C Serial Clock to SI570
To use SI570 Controller, the first thing users need to determine is the desired output frequency in
advance. The Si570 controller provides six optional clock frequencies. These options can be set
through an input port named “iFREQ_MODE” in SI570 controller. The specified settings with
corresponding frequencies are listed in
For example, setting “iFREQ_MODE” as 3’b110
will configure SI570 to output 655.53 MHz clock.
Table 5-4
SI570 Controller Frequency Setting
iFREQ MODE Setting
SI570 Clock Frequency(MHz)
3'b000
100
3'b001
125
Содержание TR-5 Lite FPGA
Страница 1: ...TR5 Lite User Manual 1 www terasic com June 20 2018...
Страница 71: ...TR5 Lite User Manual 71 www terasic com June 20 2018 Figure 5 9 CDCM 61004 Demo Figure 5 10 Si570 Demo...
Страница 85: ...TR5 Lite User Manual 85 www terasic com June 20 2018 Figure 7 5 Transceiver Loopback Test in Progress...