参数资料
型号: ADM00421
厂商: Microchip Technology
文件页数: 28/82页
文件大小: 0K
描述: KIT EVALUATION MCP2210
产品培训模块: MCP2210 Evaluation Kit
设计资源: ADM00421 BOM
标准包装: 1
主要目的: 接口,USB 至 SPI
嵌入式:
已用 IC / 零件: MCP2210
主要属性: 全速(12Mbps)
次要属性: USB 供电
已供物品: 2 板,线缆
MCP2210
DS22288A-page 34
2011 Microchip Technology Inc.
3.2
Read/Write RAM Settings
The set of commands/responses described in this section relates to the manipulation of the RAM settings (volatile).
3.2.1
GET (VM) SPI TRANSFER SETTINGS
3.2.1.1
Responses
TABLE 3-33:
COMMAND STRUCTURE
Byte
Index
Meaning
0
0x41 – Get (VM) SPI Transfer Settings – command code
1
0x00 – Reserved
2
0x00 – Reserved
3-63
0x00 – Reserved
TABLE 3-34:
RESPONSE 1 STRUCTURE
Byte
Index
Meaning
0
0x41 – Get SPI Transfer Settings (volatile memory)
1
0x00 – Command Completed Successfully
2
Size in Bytes of the SPI Transfer Structure: 17 (in decimal) = 0x11
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
CS7 CS6 CS5 CS4 CS3 CS2 CS1 CS0
9
Idle Chip Select Value – 16-bit value (high byte):
MSB
LSB
x
CS8
10
Active Chip Select Value – 16-bit value (low byte):
MSB
LSB
CS7 CS6 CS5 CS4 CS3 CS2 CS1 CS0
11
Active Chip Select Value – 16-bit value (high byte):
MSB
LSB
x
CS8
12
Chip Select to Data Delay (quanta of 100 s) – 16-bit value (low byte)
Example: If we have 500 s delay between the CS being asserted and the first byte of data, the value
will be 0x0005.
- This byte position will have a value of: 0x05
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