Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
Arguments
InitialBaudRate evaluates to a 32-bit integer that specifies the default or initial connection speed in
bytes per second that the device supports. The bit field _SPE is automatically created to refer to this
portion of the resource descriptor.
BitsPerByte is an optional argument that specifies whether five bits (DataBitsFive), six bits
(DataBitsSix), seven bits (DataBitsSeven), eight bits (DataBitsEight) or nine bits (DataBitsNine)
contain data during transfer of a single packet or character. DataBitsEight is the default. The bit field
DescriptorName._LEN is automatically created to refer to this portion of the resource descriptor.
StopBits is an optional argument that specifies whether there are two bits (StopBitsTwo), one and a
half bits (StopBitsOnePlusHalf), one bit (StopBitsOne) or no bits (StopBitsZero) used to signal
the end of a packet or character. StopBitsOne is the default. The bit field _STB is automatically
created to refer to this portion of the resource descriptor.
LinesInUse evaluates to an integer representing 8 1-bit flags representing the presence (‘1’) or
absence (‘0’) of a particular line. The bit field _LIN is automatically created to refer to this portion
of the resource descriptor.
Bit Mask
UART Line
Bit 7 (0x80)
Request To Send (RTS)
Bit 6 (0x40)
Clear To Send (CTS)
Bit 5 (0x20)
Data Terminal Ready (DTR)
Bit 4 (0x10)
Data Set Ready (DSR)
Bit 3 (0x08)
Ring Indicator (RI)
Bit 2 (0x04)
Data Carrier Detect (DTD)
Bit 1 (0x02) Reserved. Must be 0.
Bit 0 (0x01) Reserved. Must be 0.
IsBigEndian is an optional argument that specifies whether the device is expecting big endian
(BigEndian) or little endian (LittleEndian) data formats. LittleEndian is the default. The bit field
_END is automatically created to refer to this portion of the resource descriptor.
Parity is an optional argument that specifies whether the type of parity bits included after the data in
a packet are to be interpreted as space parity (ParityTypeSpace), mark parity (ParityTypeMark), odd
parity (ParityTypeOdd), even parity (ParityTypeEven) or no parity (ParityTypeNone).
ParityTypeNone is the default. The bit field PAR is automatically created to refer to this portion of
the resource descriptor.
FlowControl is an optional argument that specifies whether there is hardware-based flow control
(FlowControlHardware), software-based flow control (FlowControlXON) or no flow control
(FlowControlNone) used when communicating with the device. FlowControlNone is the default.
The bit field_FLC is automatically created to refer to this portion of the resource descriptor.
ReceiveBufferSize evaluates to a 16-bit integer that specifies the upper limit in bytes of the receive
buffer that can be optimally utilized while communicating with this device. The bit field_RXL is
automatically created to refer to this portion of the resource descriptor.
898 April, 2015 Version 6.0