Lattice Semiconductor CertusPro-NX Usage Guide

CertusPro-NX SerDes/PCS Usage Guide
Preliminary Technical Note
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Table A. 132. User Defined BIST Constant 2 Byte_0 [rege6]
Field
Name
Access
Width
Reset
Description
[7:0]
udbc2[17:10]
RW
8
8’h0
User-defined BIST Constant 1 Byte_0 register reflects the
lower 8 bits of the 10b User-defined BIST Constant value
pattern 1.
Table A. 133. User Defined BIST Constant 2 Byte_1 [rege7]
Field
Name
Access
Width
Reset
Description
[7:0]
udbc2[7:0]
RW
8
8’h0
User-defined BIST Constant 1 Byte_1 register reflects the
lower 8 bits of the 10b User-defined BIST Constant value
pattern 1.
Table A. 134. User Defined BIST Constant 2 MSB [rege8]
Field
Name
Access
Width
Reset
Description
[7:4]
reserved
RSVD
4
4’h0
—
[3:2]
udbc[19:18]
RW
2
2’h0
User-defined BIST Constant 1 Byte_0 register reflects the
lower 8 bits of the 10b User-defined BIST Constant value
pattern 1.
[1:0]
udbc[9: 8]
RW
2
2’h0
User-defined BIST Constant 1 Byte_0 register reflects the
lower 8 bits of the 10b User-defined BIST Constant value
pattern 1.
Table A. 135. BIST Status 0 [rege9]
Field
Name
Access
Width
Reset
Description
[7:3]
bist_err_cnt[11:8]
RO
5
5’h0
BIST Error Count. Specifies the BIST error count.
[2]
bist_ok
RO
1
1’h0
BIST mode. Specifies the BIST mode to be used.
1’b1 – No error for bist_res_sel = 0; Less than 2 errors
for bist_res_sel = 1; Less than 16 errors for bist_rel_sel
= 2 and less than 128 errors for bist_res_rel = 3
1’b0 – BIST is timed out or not started.
[1]
bist_done
RO
1
1’h0
BIST Done. Specifies the status of BIST timer.
1’b1 – BIST timer expires.
1’b0 – BIST is ongoing or not started.
[0]
bist_time_out
RO
1
1’h0
BIST Time Out. Specifies the BIST timeout status.
1’b1 – BIST is timed out, but it is still in “sync header
detection” stage.
1’b0 – BIST is ongoing or not started.
Table A. 136. BIST Status 1 [regea]
Field
Name
Access
Width
Reset
Description
[7:0]
bist_err_cnt[7:0]
RO
8
8’h0
BIST Status 1 register reflects the BIST error count.

Lattice Semiconductor CertusPro-NX Specifications

General

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