H A R D W A R E D E S C R I P T I O N
DNPCIe_10G_K7_LL (_QSFP) User Manual
www.dinigroup.com
51
2.9
Time Synchronization
2.9.1
Time Synchronization Circuit Diagram
Depending on the time code input, U2/U3 can be configured to accept signals including
PPS, and IRIG-B000 (RS232, RS485, RS422, TTL).
2.9.2
Connections between the FPGA and Time Synchronization Circuitry
Signal Name
FPGA
U2/U3
RS485_RO
U6-D23
U2-A6
RS485_DI
U6-D24
U2-A3
RS485_ON
U6-F22
U2-A8
RS485_TE
U6-E23
U2-A2
RS485_REn
U6-G22
U2-A5
RS485_DE
U6-F23
U2-A4
RS232_T1IN
U6-F12
U3-A4
RS232_R1OUT
U6-D14
U3-A3
RS232_ON
U6-D13
U3-A6
RS232_DIN
U6-E13
U3-A5