MCP2200 Microchip Technology, MCP2200 Datasheet - Page 4

• Manufacturer Part Number: MCP2200
• Description: USB-to-UART Serial Converter
• Manufacturer: Microchip Technology

MCP2200
1.1
Microsoft
operating systems are supported.
1.1.1
The MCP2200 will enumerate as a USB device after
POR. The device enumerates as both a Human
Interface Device (HID) for I/O control, and a VCP.
1.1.1.1
The MCP2200 enumerates as a HID so the device can
be configured and the I/O can be controlled. A DLL is
supplied by Microchip that allows I/O control using a
custom interface.
1.1.1.2
The VCP enumeration implements the USB-to-UART
data translation.
1.2
The control module is the heart of the MCP2200. All
other modules are tied together and controlled via the
control module. The control module manages the data
transfers between the USB and the UART, as well as
command requests generated by the USB host
controller, and commands for controlling the function of
the UART and I/O.
1.2.1
The control module interfaces to the UART and USB
modules.
1.2.2
The MCP2200 can be accessed for reading and writing
via USB host commands. The device cannot be
accessed and controlled via the UART interface.
DS22228A-page 4
Supported Operating Systems
Control Module
ENUMERATION
SERIAL INTERFACE
INTERFACING TO THE DEVICE
Windows
HID
VCP
XP(SP2
and
later)/Vista/7
1.3
The MCP2200 UART interface consists of the TX and
RX data signals and the RTS/CTS flow control pins.
The UART is configurable for several baud rates. The
available data formats and baud rates are listed in
Table
1.3.1
The default UART configuration is 19200, 8, N, 1. The
default start up baud rate can be changed using the
Microchip supplied configuration PC tool. The primary
baud rates are shown in
Alternatively, a custom configuration tool can be
created using the Microchip supplied DLL to set the
baud rate, as well as other parameters. See
Section 2.0 “Configuration” for details.
1.3.2
The GET_LINE_CODING and SET_LINE_CODING
commands are used to read and set the UART
parameters
Hyperterminal sends the SET_LINE_COMMAND when
connecting to the port. The MCP2200 responds by
setting the baud rate only. The other parameters (Data
Bits, Parity, Stop Bits) remain unchanged.
1.3.2.1
The primary baud rate setting (with the rounding errors)
are shown in
ones shown in the table are used, the error percentage
can be calculated using
baud rate.
TABLE 1-2:
1.3.3
Custom baud rates are configured by sending the
SET_LINE_CODING USB command, or by using the
DLL. See Section 2.0 “Configuration” for more
information.
Primary Baud Rates
Data Bits
Parity
Stop Bits
1-3.
Parameter
UART Interface
INITIAL CONFIGURATION
GET/SET LINE CODING
CUSTOM BAUD RATES
Rounding Errors
while
Table
UART CONFIGURATIONS
1-3. If baud rates other than the
in
 2010 Microchip Technology Inc.
Equation 1-1
Table
operation.
See
8
N
1
1-3.
Table 1-3
Configuration
www.DataSheet4U.com
to find the actual
For
example,