3 DT100104 Rev 4 Errata

Revision #4 of the DT100104 was produced with the ECC608-TMNGTLS device in position U8 instead of position U5 as labeled on the silk screen of the board. An ATECC608C-MAHDA (TrustCUSTOM) is in position U5 instead of position U8. The board is fully functional and was tested but was manufactured with this anomaly.

Identifying the Board

Revision #4 of the DT100104 board can be identified in multiple ways, as shown in the table below. All of these methods of identification will exist for a given board at time of manufacture. Labels can be removed and the box can be misplaced; therefore, method #1 will always be an option for identifying the board revision.


Method #	Method to Identify	Image
1	On the backside of the board, in the lower right corner, is the board revision number as shown in the figure to the right. The R4 indicates that this is revision 4 of the board.
2	The box that the board is packaged in will show revision #4 on the right side of the label on the side of the box.
3	A special label on the side of the mikroBUS™ connector was added for convenience and indicates that devices U5 and U8 were swapped and which device is in which position.
4	Scanning the barcode that is on the backside of the DT100104 board, as shown in image Figure , will display the text shown to the right. The characters ‘04’ before the ‘RYN’ identify the board as a revision #4 board. Note that the last six digits are the actual serial number of the board and will be unique for each board.	Note: Image will vary based on the barcode scanner used.

Affected Board Revisions

Only revision #4 of the DT100104 board has the U5 and U8 devices swapped.

There were a total of 200 boards that were affected by this issue. The serial number associated with each board can be obtained by scanning the barcode on the backside of the board. There is also a serial number on the box. The following table provides the min/max range for the serial numbers.

Table 3-1. Serial Numbers of Affected Boards
	PCB Label^{(1, 3)}	Box Label^{(2, 3)}
Min Serial #	021101704RYN000001	RYN241500001
Max Serial #	021101704RYN000200	RYN241500200

:

See the image in Method #4 in Identifying the Board.
See the image in Method #2 in Identifying the Board.
The last six digits of the PCB serial # and the Box Serial # may or may not correspond. This is not a cause for concern.

Work Around

Operation of the board is identical to what is described in 1.2 Device Selection, with the exception that devices U5 and U8 are swapped. The following table provides the correct DIP switch setting for selecting devices on the revision 4 version of the board.

Table 3-2. Device Selection Switches – Rev 4 Only
Switch #	DIP Switch	Device U#	Secure Element	Trust Element Type
SW1	1	U1	ATECC608C-TNGTLS	Trust&GO
SW1	2, 3, 4	U2, U3, U4	ATECC608C-TFLXTLS	TrustFLEX
SW2	5, 6, 7	U5, U6, U7	ATECC608C-MAHDA	TrustCUSTOM
SW2	8	U8	ECC608-TMNGTLS	Trust Manager

Planned Corrections

Revision #5 of the DT100104 board is planned to correct the issue described in this section. With this revision, the board will operate as described in this user manual. Production of the revision #5 board will be determined by the depletion of the inventory of revision #4. The revision #5 version of the board will show revision 04-11017-R5 on the backside of the board. In addition, Methods #2 and #4, as described in Identifying the Board, will also be valid.