MCP2210 datasheet(20/82 Pages) MICROCHIP

20 / 82 page

MCP2210

DS22288A-page 20

 2011 Microchip Technology Inc.

3.1.4

SET USB MANUFACTURER NAME

3.1.4.1

Responses

TABLE 3-11:

COMMAND STRUCTURE

Byte

Index

Meaning

0x60 – Set Chip NVRAM Parameters – command code

0x50 – Set USB Manufacturer Name – sub-command code

0x00 – Reserved

Total USB String Descriptor Length (this is the length of the Manufacturer string, multiplied by 2 + 2)

Example: “Microchip Technology Inc.” has 25 Unicode characters.

- The value to be filled in is: (25 x 2) + 2 = 52 (decimal) = 0x34

USB String Descriptor ID – always fill with 0x03

Unicode Character Low Byte

Example: For the “Microchip Technology Inc.” Unicode string, place here the low byte of the Unicode

for character “M”.

- Fill this index with 0x4D

Unicode Character High Byte

Example: For the “Microchip Technology Inc.” Unicode string, place here the high byte of the Unicode

for character “M”.

- Fill this index with 0x00

8-63

Fill in the remaining Unicode characters in the string

TABLE 3-12:

RESPONSE 1 STRUCTURE

Byte

Index

Meaning

00x60 – Set Chip NVRAM Parameters – echos back the given command code

10xFB – Blocked Access – The provided password is not matching the one stored in the chip or the

settings are permanently locked.

2-63

Don’t Care

TABLE 3-13:

RESPONSE 2 STRUCTURE

Byte

Index

Meaning

00x60 – Set Chip NVRAM Parameters – echos back the given command code

10x00 – Command Completed Successfully – settings written

20x50 – Sub-command Echoed Back for Set USB Manufacturer Name code

3-63

Don’t Care

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