Achronix Speedster22i 10G/40G/100G Ethernet - Manual (Page 63)

UG029, September 6, 2013 63
20 50 CREDIT_REG RO
7:0: Current credit register value (for debug
purpose only).
Bits 31:8 are unused and always set to ‘0’.
21 54 CL01_PAUSE_QUANTA RW
15:0: CL0_PAUSE_QUANTA
31:16: CL1_PAUSE_QUANTA
Value to be sent for the PFC quanta value
for that class when a class XOFF is
triggered.
When normal pause mode is enabled,
CL0_PAUSE_QUANTA is used.
22 58 CL23_PAUSE_QUANTA RW
15:0: CL2_PAUSE_QUANTA
31:16: CL3_PAUSE_QUANTA
Value to be sent for the PFC quanta value
for that class when a class XOFF is
triggered.
23 5C CL45_PAUSE_QUANTA RW
15:0: CL4_PAUSE_QUANTA
31:16: CL5_PAUSE_QUANTA
Value to be sent for the PFC quanta value
for that class when a class XOFF is
triggered.
24 60 CL67_PAUSE_QUANTA RW
15:0: CL6_PAUSE_QUANTA
31:16: CL7_PAUSE_QUANTA
Value to be sent for the PFC quanta value
for that class when a class XOFF is
triggered.
25 64
CL01_QUANTA_THRES
H
RW
15:0: CL0_QUANTA_THRESH
31:16: CL1_QUANTA_THRESH
When a PFC quanta timer counts down and
reaches this value, a refresh pause frame
should be sent with the programmed full
quanta value if the input level indicates that a
pause condition still exists.
When normal pause mode is enabled,
CL0_QUANTA_THRESH is used for
refreshing pause frames.
26 68
CL23_QUANTA_THRES
H
RW
15:0: CL2_QUANTA_THRESH
31:16: CL3_QUANTA_THRESH
When a PFC quanta timer counts down and
reaches this value, a refresh pause frame
should be sent with the programmed full
quanta value if the input level indicates that a
pause condition still exists.
27 6C
CL45_QUANTA_THRES
H
RW
15:0: CL4_QUANTA_THRESH
31:16: CL5_QUANTA_THRESH
When a PFC quanta timer counts down and
reaches this value, a refresh pause frame
should be sent with the programmed full
quanta value if the input level indicates that a
pause condition still exists.
28 70
CL67_QUANTA_THRES
H
RW
15:0: CL6_QUANTA_THRESH
31:16: CL7_QUANTA_THRESH
When a PFC quanta timer counts down and
reaches this value, a refresh pause frame
should be sent with the programmed full
quanta value if the input level indicates that a