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| 型号： | ADM00419 |
| 厂商： | Microchip Technology |
| 文件页数： | 34/82页 |
| 文件大小： | 0K |
| 描述： | BREAKOUT MODULE MCP2210 |
| 产品培训模块： | MCP2210 Evaluation Kit |
| 标准包装： | 1 |
| 主要目的： | 接口，USB 至 SPI |
| 嵌入式： | 否 |
| 已用 IC / 零件： | MCP2210 |
| 主要属性： | 全速（12Mbps） |
| 次要属性： | USB 供电 |
| 已供物品： | 板，线缆 |
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MCP2210
DS22288A-page 4
2011 Microchip Technology Inc.
1.1
Supported Operating Systems
The following operating systems are supported:
Windows XP/Vista/7
Linux
Mac OS
1.1.1
ENUMERATION
The MCP2210 will enumerate as a USB device after
Power-on Reset (POR). The device enumerates as a
Human Interface Device (HID) only.
1.1.1.1
Human Interface Device (HID)
The MCP2210 enumerates as an HID, so the device
can be configured and all the other functionalities can
be controlled. A DLL package that facilitates I/O control
through a custom interface is supplied by Microchip
and is available on the product landing page.
1.2
Control Module
The control module is the heart of the MCP2210. All
other modules are tied together and controlled via the
control module. The control module manages the data
transfers between the USB and the SPI, as well as
command requests generated by the USB host
controller, and commands for controlling the function of
the SPI and I/O.
1.2.1
SPI INTERFACE
The control module interfaces to the SPI and USB
modules.
1.2.2
INTERFACING TO THE DEVICE
The MCP2210 can be accessed for reading and writing
via USB host commands. The device cannot be
accessed and controlled via the SPI interface.
1.3
SPI Module
The MCP2210 SPI module provides the MOSI, MISO
and SCK signals to the outside world. The module has
the ability to control the GP pins (as Chip Select) only if
these pins are configured for Chip Select operation.
1.3.1
SPI MODULE FEATURES
The SPI module has the following configurable
features:
Bit rates
Delays
Chip Select pin assignments (up to 9 Chip Select
lines)
All the above features are available for customization
using certain USB commands.
1.3.2
SPI MODULE POWER-UP
CONFIGURATION
Default parameters:
1 Mbit
4 bytes to transfer per SPI transaction
GP1 as Chip Select line
1.4
USB Protocol Controller
The USB controller in the MCP2210 is full-speed USB
2.0 compliant.
HID only device used for:
- SPI transfers
- I/O control
- EEPROM access
- Chip configuration manipulation
128-byte buffer to handle data for SPI transfers
- 64-byte transmit
- 64-byte receive
Fully configurable VID, PID assignments, string
descriptors (stored on-chip) and chip power-up
settings (default chip settings and SPI transfer
parameters)
Bus powered or self-powered
1.4.1
DESCRIPTORS
The string descriptors are stored internally in the
MCP2210 and they can be changed so when the chip
enumerates, the host gets the customer’s own product
and manufacturer names. They can be customized to
the user’s needs by using the Microchip provided con-
figuration utility or a custom built application that will
send the proper USB commands for storing the new
descriptors into the chip.
1.4.2
USB EVENTS
The MCP2210 provides support for signaling important
USB-related events such as:
USB Suspend and Resume – these states are
signaled on the GP2, if the pin is configured for its
dedicated function
- USB Suspend mode is entered when a
suspend signaling event is detected on the
USB bus
- USB Resume is signaled when one of the
following events is occurring:
a) Resume signaling is detected or generated
b) A USB Reset signal is detected
c)
A device Reset occurs
USB device enumerated successfully (this state is
signaled if the GP4 is configured for its dedicated
function)
USB Low-Power mode
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