APPENDIX A: Registers for PCIe8g3 S5
Registers, Port: Port 4 (QSFP)
EDT, Inc.
2017 January 04
41
Registers, Port: Port 4 (QSFP)
0xA0–0xA7 Indirect
0xA0 QSFP Configuration and Status
0xA1 Port Enable
0xA2 Port Status
0xA3 QSFP Status 2 [Reserved]
Access / Notes:
8-bit read-write / STRATIX5_REGXL8(STRATIX5_OPT_XCVR, 4)
Bit
Access
Bit name
Description
7
–
–
Reserved.
6
R only
[no name]
When set, indicates that the QSFP is asserting an interrupt.
5
R only
[no name]
When set, indicates that the QSFP is connected and detected.
4
–
–
Reserved.
3
–
–
Reserved.
2
RW
[no name]
Set to enable low power mode.
1
RW
[no name]
Set to enable transceiver.
0
–
–
Reserved.
Access / Notes:
8-bit read-write / STRATIX5_REGXL8(STRATIX5_PORT_CTRL, 4)
Bit
Access
Name
Description
7–3
–
–
Reserved.
2
RW
[no name]
Set to enable PLL1 (not used).
1
RW
[no name]
Set to enable PLL0 (not used).
0
RW
[no name]
Set to enable the LIU (not used).
Access / Notes:
8-bit read-only / STRATIX5_REGXL8(STRATIX5_PORT_STAT, 4)
Bit
Access
Name
Description
7
–
–
Reserved.
6
R only
[no name]
When set, indicates the transceiver reconfiguration is in progress.
5
–
–
Reserved.
4
R only
[no name]
When set, indicates the transceiver transmit PLL0 is locked.
3
R only
[no name]
When set, indicates the transceiver CDR is locked to data.
2
R only
[no name]
When set, indicates the transceiver CDR is locked to reference clock.
1
R only
[no name]
When set, indicates the transceiver is ready to receive.
0
R only
[no name]
When set, indicates the transceiver is ready to transmit.