Lattice Semiconductor CertusPro-NX Usage Guide

CertusPro-NX SerDes/PCS Usage Guide
Preliminary Technical Note
146 © 2020-2021 Lattice Semiconductor FPGA-TN-02245-0.81
All rights reserved. CONFIDENTIAL
Table A. 93. Secondary SKIP Pattern MSB [reg6d]
Field
Name
Access
Width
Reset
Description
[7:6]
sec_skip_byte3[9:8]
RW
2
2’h0
Secondary SKIP Pattern MSB Register reflects the bits 9 to
8 of Secondary SKIP Pattern byte 3 to 0.
[5:4]
sec_skip_byte2[9:8]
RW
2
2’h0
[3:2]
sec_skip_byte1[9:8]
RW
2
2’h0
[1:0]
sec_skip_byte0[9:8]
RW
2
2’h1
Table A. 94. SKIP Pattern Mask Code [reg6e]
Field
Name
Access
Width
Reset
Description
[7:4]
reserved
RSVD
4
—
—
[3:0]
skp_mask_code
RW
4
4’h0
SKIP Pattern Mask Code. Specifies whether the SKIP
Pattern is ignored or not.
1’b1 – The corresponding byte of SKIP pattern is
ignored during SKIP pattern matching.
1’b0 – The corresponding byte of SKIP pattern is not
ignored during SKIP pattern matching.
Table A. 95. 64B/66B PCS Tx Path Control [reg80]
Field
Name
Access
Width
Reset
Description
[7:2]
reserved
RSVD
6
—
—
[1]
end_64b66b_dis
RW
1
1’b0
Enable 64B/66B Encoder. Specifies the 64B/66B Encoder is
enabled or disabled.
1’b1 – 64B/66B Encoder is disabled.
1’b0 – 64B/66B Encoder is enabled.
[0]
src_64b66b_dis
RW
1
1’b0
Enable 64B/66B Scrambler. Specifies the 64B/66B
Scrambler is enabled or disabled.
1’b1 – 64B/66B Scrambler is disabled.
1’b0 – 64B/66B Scrambler is enabled.
Table A. 96. 64B/66B PCS Tx FIFO Almost Full Setting Control [reg81]
Field
Name
Access
Width
Reset
Description
[7:4]
reserved
RSVD
6
—
—
[3:0]
tx_fifo_af
RW
4
4’hC
64B/66B Tx FIFO Almost Full. When the number of blocks
residing in the FIFO is more than this setting, the "almost
full" status is reported.
Table A. 97. 64B/66B PCS Tx FIFO Almost Empty Setting Control [reg82]
Field
Name
Access
Width
Reset
Description
[7:4]
reserved
RSVD
6
—
—
[3:0]
tx_fifo_ae
RW
4
4’h4
64B/66B Tx FIFO Almost Empty. When the number of
blocks residing in the FIFO is less than this setting, the
"almost empty" status is reported.
Table A. 98. 64B/66B PCS Rx Path Control [reg83]
Field
Name
Access
Width
Reset
Description
[7:6]
reserved
RSVD
4
—
—
[5]
del_os_cont
RW
1
1’b0
1’b1 – Allow continuously delete sequence ordered set
when doing clock frequency compensation.

Lattice Semiconductor CertusPro-NX Specifications

General

Brand	Lattice Semiconductor
Model	CertusPro-NX
Category	Computer Hardware
Language	English