Microchip Technology ADM00419 Data Sheet
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
• 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.
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.
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.
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.
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.
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.
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
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.
using certain USB commands.
1.3.2
SPI MODULE POWER-UP
CONFIGURATION
CONFIGURATION
Default parameters:
• 1 Mbit
• 4 bytes to transfer per SPI transaction
• GP1 as Chip Select line
• 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:
2.0 compliant.
• HID only device used for:
- SPI transfers
- I/O control
- EEPROM access
- Chip configuration manipulation
- I/O control
- EEPROM access
- Chip configuration manipulation
• 128-byte buffer to handle data for SPI transfers
- 64-byte transmit
- 64-byte receive
- 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)
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.
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
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
dedicated function
- USB Suspend mode is entered when a
suspend signaling event is detected on the
USB bus
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) 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)
function)
• USB Low-Power mode