MCP2210 MICROCHIP [Microchip Technology], MCP2210 Datasheet - Page 30

• Manufacturer Part Number: MCP2210
• Description: USB-to-SPI Protocol Converter with GPIO (Master Mode)
• Manufacturer: MICROCHIP [Microchip Technology]

MCP2210
3.1.9
TABLE 3-23:
3.1.9.1
TABLE 3-24:
FIGURE 3-9:
DS22288A-page 30
Index
Index
Byte
Byte
3-63
8-63
0
1
2
0
1
2
3
4
5
6
7
GET USB MANUFACTURER NAME
0x61 – Get NVRAM Settings – command code
0x50 – Get USB Manufacturer Name – sub-command code
0x00 – Reserved
0x00 – Reserved
0x61 – Get NVRAM Settings – echos back the given command code
0x00 – Command Completed Successfully
0x50 – Sub-command Echoed Back for Get USB Manufacturer Name code
Don’t Care
Total USB String Descriptor Length (this is the length of the Manufacturer string multiplied by 2 + 2)
USB String Descriptor ID – always 0x03
Unicode Character Low Byte
Unicode Character High Byte
Remaining Unicode Characters
Responses
- The retrieved value is: (25 x 2) + 2 = 52 (decimal) = 0x34
- This byte index will have a value of 0x4D
- This byte index will have a value of 0x00
Example: For the “Microchip Technology Inc.” Unicode string, there will be the low byte of the Unicode
Example: For the “Microchip Technology Inc.” Unicode string, there will be the high byte of the
Example: “Microchip Technology Inc.” has 25 Unicode characters.
COMMAND STRUCTURE
RESPONSE 1 STRUCTURE
GET USB MANUFACTURER NAME LOGIC FLOW
for character “M”.
Unicode for character “M”.
Manufacturer Name
Get NVRAM USB
Name Retrieved
Response 1
NVRAM USB
Manufacturer
Meaning
Meaning
 2011 Microchip Technology Inc.