Datasheet

MCP2210
DS22288A-page 16  2011 Microchip Technology Inc.
3.1.2.1 Responses
17 Delay Between Subsequent Data Bytes (quanta of 100 µs) – 16-bit value (high byte)
Example
: If 500 µs delay between two consecutive data bytes is required, the value will be 0x0005.
- Fill this byte position with: 0x00
18 Bytes to Transfer per SPI Transaction – 16-bit value (low byte)
Example
: If an SPI transaction of 1250 bytes long is required, the corresponding hex value will be
0x04E2.
- Fill this byte position with: 0xE2
19 Bytes to Transfer per SPI Transaction – 16-bit value (high byte)
Example: If an SPI transaction of 1250 bytes long is required, the corresponding hex value will be
0x04E2.
- Fill this byte position with: 0x04
20 SPI Mode
• 0x00 – SPI mode 0
• 0x01 – SPI mode 1
• 0x02 – SPI mode 2
• 0x03 – SPI mode 3
21 - 63 Reserved – fill with 0x00
TABLE 3-5: RESPONSE 1 STRUCTURE
Byte
Index
Meaning
0 0x60 – Set Chip NVRAM Parameters – echos back the given command code
10xFB – Blocked Access – Access password has not been provided or the settings are permanently
locked.
2-63 Don’t Care
TABLE 3-4: COMMAND STRUCTURE (CONTINUED)
Byte
Index
Meaning
TABLE 3-6: RESPONSE 2 STRUCTURE
Byte
Index
Meaning
00x60 – Set Chip NVRAM Parameters – echos back the given command code
10xF8 – USB Transfer in Progress – settings not written
20x10 – Sub-command Echoed Back – set SPI power-up transfer settings
3-63 Don’t Care
TABLE 3-7: RESPONSE 3 STRUCTURE
Byte
Index
Meaning
0 0x60 – Set Chip NVRAM Parameters – echos back the given command code
1 0x00 – Command Completed Successfully – settings written
2 0x10 – Sub-command Echoed Back for Set SPI Power-up Transfer Settings code
3-63 Don’t Care