AD9154 datasheet(118/124 Pages) AD

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AD9154

Data Sheet

Rev. C | Page 118 of 124

Addr.

Name

Bits

Bit Name

Settings

Description

Reset

Access

0x45D

ILS_CHECKSUM [7:0]

LANE0-

CHECKSUM

Checksum for Lane 0.

0x45

R/W

The checksum for the values programmed into

according to section 8.3 of the JESD204B spec and

written here [SUM(Register 0x450 – Register 0x45C)

% 256 ].

0x46B

ERRCNTRMON

RESERVED

Reserved.

0x0

[6:4]

LANESEL

Lane Select for JESD204B Error Counter.

0x0

Writing these bits selects the JESD lane to monitor

the error type designated by the register write to

CNTRSEL (Bits 1:0]) BADDISCNTR, NITCNTR and

UEKCCNTR error counters in each lane are accessed

via indirect addressing. To read a counter value, the

LANESEL and CNTRSEL are first written, then the read

back accesses the desired counter.

0 Selects Lane 0.

1 Selects Lane 1.

3 Selects Lane 2.

3 Selects Lane 3.

4 Selects Lane 4.

5 Selects Lane 5.

6 Selects Lane 6.

7 Selects Lane 7.

[3:2]

RESERVED

Reserved.

0x0

[7:0]

READERRORCNTR

Read JESD204B Error Counter.

0x0

After selecting the lane and error counter by writing

to LANESEL (Bits[6:4]) and CNTRSEL (1:0), the selected

error counter is read back here.

[1:0]

CNTRSEL

JESD204B Error Counter Select.

0x0

Writing these bits allows the readback of the following

JESD204B errors for the lane designated by the register

write to LANESEL (Bits[6:4]). To read a counter value, the

LANESEL and CNTRSEL are first written, then the read

back access the desired counter.

BADDISCNTR: bad running disparity counter.

NITCNTR: not in table error counter.

UCCCNTR: Unexpected control character counter.

0x46C

LANEDESKEW

[7:0]

LANEDESKEW

Lane Deskew.

0xF

R/W

Enabled on a per lane basis by writing 1 to the

appropriate bit position: Bits[7:0] map to Lane 7 to

Lane 0. Note that in dual link mode, only Bits[3:0] are

used for each link.

1: Deskew enabled for Lane 0.

1: Deskew enabled for Lane 1.

1: Deskew enabled for Lane 2.

1: Deskew enabled for Lane 3.

1: Deskew enabled for Lane 4.

1: Deskew enabled for Lane 5.

1: Deskew enabled for Lane 6.

1: Deskew enabled for Lane 7.

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