User guide

Word
Addr
Bit R/W Name Description
0x4
D3
9:0
RW ber_time_frames Specifies the number of training frames to examine for
bit errors on the link for each step of the equalization
settings. Used only when ber_time_k_frames is 0. The
following values are defined:
• A value of 2 is about 10
3
bytes
• A value of 20 is about 10
4
bytes
• A value of 200 is about 10
5
bytes
The default value for simulation is 2'b11. The default
value for hardware is 0.
19:10 RW ber_time_k_frames Specifies the number of thousands of training frames to
examine for bit errors on the link for each step of the
equalization settings. Set ber_time_m_frames = 0 for
time/bits to match the following values:
• A value of 3 is about 10
7
bits = About 1.3 ms
• A value of 25 is about 10
8
bits = About 11 ms
• A value of 250 is about 10
9
bits = About 110 ms
The default value for simulation is 0. The default value
for hardware is 0x415.
29:20 RW ber_time_m_frames Specifies the number of millions of training frames to
examine for bit errors on the link for each step of the
equalization settings. Set ber_time_k_frames = 4'd1000 =
0x43E8 for time/bits to match the following values:
• A value of 3 is about 10
10
bits = About 1.3 seconds
• A value of 25 is about 10
11
bits = About 11 seconds
• A value of 250 is about 10
12
bits = About 110 seconds
UG-01143
2015.05.11
Register Definitions
2-195
Implementing Protocols in Arria 10 Transceivers
Altera Corporation
Send Feedback