Microchip Technology ADM00419 Data Sheet
MCP2210
DS22288A-page 24
2011 Microchip Technology Inc.
3.1.6
GET SPI POWER-UP TRANSFER SETTINGS
3.1.6.1
Responses
TABLE 3-17:
COMMAND STRUCTURE
Byte
Index
Meaning
0
0x61 – Get NVRAM Settings – command code
1
0x10 – Get SPI Power-up Transfer Settings – sub-command code
2
0x00 – Reserved
3-63
0x00 – Reserved
TABLE 3-18:
RESPONSE 1 STRUCTURE
Byte
Index
Meaning
0
0x61 – Get NVRAM Settings – echos back the given command code
1
0x00 – Command Completed Successfully
2
0x10 – Sub-command Echoed Back for Get SPI Power-up Transfer Settings code
3
Don’t Care
4
Bit Rate (Byte 3) – 32-bit value (Byte 0, Byte 1, Byte 2, Byte 3)
Example: Bit rate = 12,000,000 bps = 00B7 1B00
- This byte position will have a value of = 0x00
5
Bit Rate (Byte 2) – 32-bit value (Byte 0, Byte 1, Byte 2, Byte 3)
Example: Bit rate = 12,000,000 bps = 00B7 1B00
- This byte position will have a value of = 0x1B
6
Bit Rate (Byte 1) – 32-bit value (Byte 0, Byte 1, Byte 2, Byte 3)
Example: Bit rate = 12,000,000 bps = 00B7 1B00
- This byte position will have a value of = 0xB7
7
Bit Rate (Byte 0) – 32-bit value (Byte 0, Byte 1, Byte 2, Byte 3)
Example: Bit rate = 12,000,000 bps = 00B7 1B00
- This byte position will have a value of = 0x00
8
Idle Chip Select Value – 16-bit value (low byte):
• MSB – – – – – – LSB
• MSB – – – – – – LSB
CS7 CS6 CS5 CS4 CS3 CS2 CS1 CS0
9
Idle Chip Select Value – 16-bit value (high byte):
• MSB – – – – – – LSB
• MSB – – – – – – LSB
x x x x x x x CS8
10
Active Chip Select Value – 16-bit value (low byte):
• MSB – – – – – – LSB
• MSB – – – – – – LSB
CS7 CS6 CS5 CS4 CS3 CS2 CS1 CS0
11
Active Chip Select Value – 16-bit value (high byte):
• MSB – – – – – – LSB
• MSB – – – – – – LSB
x x x x x x x CS8
12
Chip Select to Data Delay (quanta of 100 µs) – 16-bit value (low byte)
Example: If a 500 µs delay between the CS being asserted and the first byte of data is required, the
value will be 0x0005.
- This byte position will have a value of: 0x05
13
Chip Select to Data Delay (quanta of 100 µs) – 16-bit value (high byte)
Example: If a 500 µs delay between the CS being asserted and the first byte of data is required, the
value will be 0x0005.
- This byte position will have a value of: 0x00