MCP2210 datasheet(18/82 Pages) MICROCHIP

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MCP2210

DS22288A-page 18

 2011 Microchip Technology Inc.

3.1.3

SET USB POWER-UP KEY PARAMETERS

3.1.3.1

Responses

TABLE 3-8:

COMMAND STRUCTURE

Byte

Index

Meaning

0x60 – Set Chip NVRAM Parameters – command code

0x30 – Set USB Power-up Key Parameters – sub-command code

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.

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

TABLE 3-9:

RESPONSE 1 STRUCTURE

Byte

Index

Meaning

00x60 – Set Chip NVRAM Parameters – echo 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 3-10:

RESPONSE 2 STRUCTURE

Byte

Index

Meaning

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

10x00 – Command Completed Successfully – Settings written

20x30 – Sub-command Echoed Back for Set USB Power-up Key Parameters code

3-63

Don’t Care

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