MCP2210 MICROCHIP [Microchip Technology], MCP2210 Datasheet - Page 54

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

MCP2210
3.5
The set of commands/responses described in this section relates to the SPI data transfer functionality.
3.5.1
TABLE 3-58:
3.5.1.1
TABLE 3-59:
TABLE 3-60:
TABLE 3-61:
DS22288A-page 54
Index
Index
Index
Index
Byte
Byte
Byte
Byte
3-63
4-63
3-63
4-63
0
1
2
3
0
1
2
0
1
2
3
0
1
2
SPI Data Transfer
TRANSFER SPI DATA
0x42 – Transfer SPI Data – echos back the given command code
0xF7 – SPI Data Not Accepted – SPI bus not available (the external owner has control over it)
Don’t Care
Don’t Care
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
SPI Transfer Engine Status
• 0x20 – SPI transfer started – no data to receive
SPI Received Data Bytes. The number of data bytes is specified at byte index 2
0x42 – Transfer SPI Data – echos back the given command code
0xF8 – SPI Data Not Accepted – SPI transfer in progress – cannot accept any data for the moment
Don’t Care
Don’t Care
0x42 – Transfer SPI Data – command code
The number of bytes to be transferred in this packet (from 0 to 60 inclusively)
0x00 – Reserved
0x00 – Reserved
The SPI Data to be sent on the data transfer
Responses
COMMAND STRUCTURE
RESPONSE 1 STRUCTURE
RESPONSES 2 STRUCTURE
RESPONSE 3 STRUCTURE
Meaning
Meaning
Meaning
Meaning
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