CEC1702 datasheet(17/30 Pages) MICROCHIP

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CEC1702 Efuse Generator Tool Procedure

 2017 Microchip Technology Inc.

DS50002598A-page 17

21. If “Use Custom space” field is enabled, the Custom Efuse data space from

192-479 can be used for storing user data. Please refer to Chapter 37 “eFUSE

Block” of CEC1702 Data Sheet for more details.

22. The “Custom input” will be active if 'Use Custom Space' is selected. “IDX” refers

to the custom space offset from 192-479 (decimal value, the equivalent hexadec-

imal value is 0xC0 to 0x1DF). “Data” refers to the data value to be written to the

offset address. This tool allows the IDX and Data values to be entered in Hexa-

decimal (Hex) or Decimal (Dec) format with the radio button selection option. The

default mode is hexadecimal. The user will need to add one data at a given

address at a time and will need to use the “Enter” button on the form to enter each

data value in the location. IDX will be checked against valid entry for the custom

space and return an error message, if the address offset value is outside of the

range. Figure 2-7: “Index Out Of Range Indication” shows the error message

window that would be displayed, if the wrong entry is entered. If the entry is cor-

rect the window shown in Figure 2-5: “Custom Data View Window” will pop up.

23. Clicking on the “Auto Refresh” button of Figure 2-5: “Custom Data View Win-

dow” refreshes the custom data and address as it is entered. This is shown in

Figure 2-6: “Example Of Custom input Data display”. Clicking the “OK” but-

ton will close the window and no further information on “Custom input” data will

be displayed.

FIGURE 2-4:

SAMPLE CEC1702 EFUSE GENERATOR TOOL ENTRY

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