參數(shù)資料
型號(hào): MCP2210T-I/SO
廠商: Microchip Technology
文件頁(yè)數(shù): 22/82頁(yè)
文件大?。?/td> 0K
描述: IC CONVERTER USB-PCI 20-SOIC
產(chǎn)品培訓(xùn)模塊: MCP2210 Evaluation Kit
標(biāo)準(zhǔn)包裝: 1,600
應(yīng)用: 帶 GPIO 的 USB 至 SPI 連接器
接口: SPI,USB
電源電壓: 3.3 V ~ 5.5 V
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 20-SOIC W
包裝: 帶卷 (TR)
安裝類型: 表面貼裝
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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