MCP2210 datasheet(55/82 Pages) MICROCHIP

55 / 82 page

 2011 Microchip Technology Inc.

DS22288A-page 55

MCP2210

FIGURE 3-23:

TRANSFER SPI DATA LOGIC FLOW

TABLE 3-62:

RESPONSE 4 STRUCTURE

Byte Index

Meaning

0x42 – Transfer SPI Data – echos back the given command code

0x00 – SPI Data accepted – Command Completed Successfully – SPI data accepted

How many SPI received data bytes the chip is sending back to the host

0x30 – SPI Transfer Engine Status: SPI transfer not finished; received data available

4-63

SPI received data bytes. The number of data bytes is specified at byte index 2

TABLE 3-63:

RESPONSE 5 STRUCTURE

Byte Index

Meaning

0x42 – Transfer SPI Data – echos back the given command code

0x00 – SPI Data accepted – Command Completed Successfully – SPI data accepted

How many SPI received data bytes the chip is sending back to the host

0x10 – SPI Transfer Engine Status: SPI transfer finished – no more data to send

4-63

SPI received data bytes. The number of data bytes is specified at byte index 2

Transfer SPI Data

FALSE

TRUE

FALSE

Ongoing

SPI Transfer

Response 1

Response 2

Response 3

Response 5

Response 4

SPI Bus

used by External Master

SPI Bus owned

by an External Master

SPI Data Accepted

The SPI Transfer

will start afterwards

SPI Transfer Ended

SPI Transfer

Waiting for More Data

SPI Engine waiting

for more data packets

to complete the SPI Transfer

SPI Transfer Ended

The response will contain

the last received SPI data

packet of the SPI Transfer

Ongoing SPI Transfer

cannot accept any data now

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