Extended Command 0X0401 - Auxiliary Uart Control - Magtek mDynamo Programmer's Manual

7 - Commands

7.5.2 Extended Command 0x0401 - Auxiliary UART Control

Like all extended commands, the host initiates this command by calling Command 0x49 - Send
Extended Command Packet (Extended Commands Only), and receives a response as documented
there.
The host uses this command to control the device's auxiliary UART.
Table 7-44 - Request Data for Extended Command 0x0401 - Auxiliary UART Control
Offset Field Name
0 Port Identifier The identifier of the port to transmit on. Always set this field to zero.
1 Control Data
Control Data Field: (Bit 0 is the least significant bit)
Bit Field Name
0 Open
1 DTR Level
2 RTS Level
3 DSR Level
4 CTS Level
5..7 Reserved
Table 7-45 - Response Data for Extended Command 0x0401 - Auxiliary UART Control
Offset Field Name
0 Control Data
Result codes:
0x0000 = Success
mDynamo| OEM Secure Card Reader Authenticator | Programmer's Manual (COMMANDS)
The control data. If the host omits this field, the device returns the existing
control data field to the host in the response data. See the Control Data Field
table below for a description of each bit in this field.
0 = Port is closed. Ports power output is off, port signal lines will float, and data
can not be transmitted or received on the port.
1 = Port is open.
0 = DTR output signal is set low when the port is open.
1 = DTR output signal is set high when the port is open.
0 = RTS output signal is set low when the port is open.
1 = RTS output signal is set high when the port is open.
0 = DSR input signal is read low when the port is open.
1 = DSR input signal is read high when the port is open.
This bit always reads zero when the port is closed. This bit is read-only.
0 = CTS input signal is read low when the port is open.
1 = CTS input signal is read high when the port is open.
This bit always reads zero when the port is closed. This bit is read only.
These bits should always be written as zeroes.
The control data. If the host transmitted Control Data in the request data, this
field is not returned in the response data, otherwise the existing control data is
returned in this field. See the Control Data Field table above for a description of
each bit in this field.
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