参数资料
型号: MCP2210T-I/SO
厂商: Microchip Technology
文件页数: 22/82页
文件大小: 0K
描述: IC CONVERTER USB-PCI 20-SOIC
产品培训模块: MCP2210 Evaluation Kit
标准包装: 1,600
应用: 带 GPIO 的 USB 至 SPI 连接器
接口: SPI,USB
电源电压: 3.3 V ~ 5.5 V
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
供应商设备封装: 20-SOIC W
包装: 带卷 (TR)
安装类型: 表面贴装
2011 Microchip Technology Inc.
DS22288A-page 29
MCP2210
3.1.8
GET USB KEY PARAMETERS
3.1.8.1
Responses
FIGURE 3-8:
GET USB KEY PARAMETERS LOGIC FLOW
TABLE 3-21:
COMMAND STRUCTURE
Byte
Index
Meaning
00x61 – Get NVRAM Settings – command code
10x30 – Get USB Key Parameters – sub-command code
20x00 – Reserved
3-63
0x00 – Reserved
TABLE 3-22:
RESPONSE 1 STRUCTURE
Byte
Index
Meaning
0
0x61 – Get NVRAM Settings – echos back the given command code
1
0x00 – Command Completed Successfully
2
0x30 – Sub-command Echoed Back for Get USB Key Parameters code
3-11
Don’t care
12
VID low byte
13
VID high byte
14
PID low byte
15
PID high byte
16-28
Don’t care
29
Chip Power Option (as per USB specs – Chapter 9)
Bit 7 – Host Powered
Bit 6 – Self Powered
Bit 5 – Remote Wake-up Capable
Bit 4 – Don’t Care
Bit 3 – Don’t Care
Bit 2 – Don’t Care
Bit 1 – Don’t Care
Bit 0 – Don’t Care
30
Requested Current Amount from USB Host (quanta of 2 mA)
Example: For 100 mA this byte index will have a value of 50 (in decimal) or 0x32.
31-63
Don’t Care
Get NVRAM USB
Key Parameters
Response 1
NVRAM USB
Key Parameters
Retrieved
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