MCP2210
3.1.3
SET USB POWER-UP KEY PARAMETERS
TABLE 3-8:
COMMAND STRUCTURE
Byte
Index
Meaning
0
1
2
3
4
5
6
7
8
0x60 – Set Chip NVRAM Parameters – command code
0x30 – Set USB Power-up Key Parameters – sub-command code
0x00 – Reserved
0x00 – Reserved
VID – 16-bit value (low byte)
VID – 16-bit value (high byte)
PID – 16-bit value (low byte)
VID – 16-bit value (high byte)
Chip Power Option (as per USB specs – Chapter 9)
• Bit 7 – Host Powered (1= yes; 0= no)
• Bit 6 – Self Powered (1= yes; 0= no)
• Bit 5 – Remote Wake-up Capable
• Bit 4 – Reserved – fill with 0
• Bit 3 – Reserved – fill with 0
• Bit 2 – Reserved – fill with 0
• Bit 1 – Reserved – fill with 0
• Bit 0 – Reserved – fill with 0
Note:
Only bit 6 or bit 7 should be set, not both.
9
Requested Current Amount from USB Host (quanta of 2 mA)
Example: For 100 mA fill this byte index with 50 (in decimal) or 0x32.
10-63
Reserved – fill with 0x00
3.1.3.1
Responses
TABLE 3-9:
RESPONSE 1 STRUCTURE
Byte
Index
Meaning
0
1
0x60 – Set Chip NVRAM Parameters – echo back the given command code
0xFB – 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 3-10: RESPONSE 2 STRUCTURE
Byte
Index
Meaning
0
1
0x60 – Set Chip NVRAM Parameters – echo back the given command code
0x00 – Command Completed Successfully – Settings written
0x30 – Sub-command Echoed Back for Set USB Power-up Key Parameters code
Don’t Care
2
3-63
DS22288A-page 18
2011 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
