MCP2210 datasheet(59/82 Pages) MICROCHIP

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 2011 Microchip Technology Inc.

DS22288A-page 59

MCP2210

3.6

Chip Status

The chip status command is used to retrieve status information regarding the state of the SPI transfer engine.

3.6.1

GET MCP2210 STATUS

3.6.1.1

Responses

FIGURE 3-26:

GET MCP2210 STATUS LOGIC FLOW

TABLE 3-69:

COMMAND STRUCTURE

Byte Index

Meaning

0x10 – Get MCP2210 Status – command code

0x00 – Reserved

3-63

0x00 – Reserved

TABLE 3-70:

RESPONSE 1 STRUCTURE

Byte

Index

Meaning

0x10 – Get MCP2210 Status – echos back the given command code

0x00 – Command Completed Successfully

SPI Bus Release External Request Status

• 0x01 – No External Request for SPI Bus Release

• 0x00 – Pending External Request for SPI Bus Release

SPI Bus Current Owner

• 0x00 – No Owner

• 0x01 – USB Bridge

• 0x02 – External Master

Attempted Password Accesses – informs the USB host on how many times the NVRAM password

was tried

Password Guessed

• 0x00 – Password Not Guessed

• 0x01 – Password Guessed

6-63

Don’t Care

Get MCP2210

Status

Response 1

MCP2210 Status

Information

Retrieved

MCP2210 Datasheet(PDF) 59 Page - Microchip Technology

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