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| 型号： | MCP2210T-I/SS |
| 厂商： | Microchip Technology |
| 文件页数： | 3/82页 |
| 文件大小： | 0K |
| 描述： | IC CONVERTER USB-PCI 20-SSOP |
| 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-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 20-SSOP |
| 包装： | 带卷 (TR) |
| 安装类型： | 表面贴装 |
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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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