參數(shù)資料
型號: MCP2210T-I/MQ
廠商: Microchip Technology
文件頁數(shù): 3/82頁
文件大?。?/td> 0K
描述: IC CONVERTER USB-PCI 20-QFN
產(chǎn)品培訓模塊: MCP2210 Evaluation Kit
標準包裝: 3,300
應用: 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-VQFN 裸露焊盤
供應商設備封裝: 20-QFN(5x5)
包裝: 帶卷 (TR)
安裝類型: 表面貼裝
2011 Microchip Technology Inc.
DS22288A-page 11
MCP2210
3.0
USB COMMANDS/RESPONSES
DESCRIPTION
MCP2210 implements the HID interface for all the
device-provided functionalities. The chip uses a
command/response mechanism for the USB engine.
This means that for every USB command sent (by the
USB host) to the MCP2210, it will always reply with a
response packet.
The MCP2210 USB commands can be grouped by
their provided features as follows:
- Read/Write NVRAM related parameters
- Send access password
Read/Write RAM Settings (copied from NVRAM
at power-up or Reset):
- Read/Write (volatile – RAM stored settings)
SPI transfer settings
- Read/Write (volatile – RAM stored settings)
chip settings
- Read/Write (volatile – RAM stored settings)
GPIO direction
- Read/Write (volatile – RAM stored settings)
GPIO output values
- Read/Write SPI transfer data
- Cancels the ongoing SPI transfer
- SPI bus release manipulation
Chip Status and Unsupported commands
3.1
NVRAM Settings
The commands in this category are related to the NVRAM settings manipulation.
3.1.1
SET CHIP SETTINGS POWER-UP DEFAULT
TABLE 3-1:
COMMAND STRUCTURE
Byte Index
Meaning
0
0x60 – Set Chip NVRAM Parameters – command code
1
0x20 – Set Chip Settings Power-up Default – sub-command code
2
0x00 – Reserved
3
0x00 – Reserved
4
GP0 Pin Designation
GPIO = 0x00
Chip Selects = 0x01
Dedicated Function pin = 0x02
5
GP1 Pin Designation
GPIO = 0x00
Chip Selects = 0x01
Dedicated Function pin = 0x02
6
GP2 Pin Designation
GPIO = 0x00
Chip Selects = 0x01
Dedicated Function pin = 0x02
7
GP3 Pin Designation
GPIO = 0x00
Chip Selects = 0x01
Dedicated Function pin = 0x02
8
GP4 Pin Designation
GPIO = 0x00
Chip Selects = 0x01
Dedicated Function pin = 0x02
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