Newcom.sys Parameters - Brainboxes CC-313 Manual

Software Configuration
• Note down IRQ, I/O address and SISR (the SISR is the Shared
Interrupt Status Register, which is a read only register which
returns an index value that identifies which port on the card has
an interrupt awaiting servicing by the driver software.) In this
case:
The IRQ = 11
The I/O address = 0140
The SISR = 0104

NEWCOM.SYS Parameters.

The NewCOM.SYS device driver included with the PCI
Quad RS232 driver software is used to set up the card in DOS and
has the following syntax:
NEWCOM.SYS /A port address, /L SISR, IRQ, range /B number
buffer /S buffer /H hardware handshake
Where /A port address specifies COM port number followed by a
hexadecimal address in the form /Ax,y where x is COM
port range and y is I/O address.
/L SISR, IRQ, range specifies SISR address, card interrupt and
COM port range. The COM port range specifies the COM
port(s). Range may be a single port OR a range of ports.
/B number buffer is used to set the number of pairs of
buffers to be allocated to ports and is a decimal number in
the range 1-maxport.
/S buffer Set size of all buffers in bytes, buffer is rounded
to the nearest power of 2 and must be a decimal number in
the range 32 to 32768. For any serial port opened two
buffers of size buffer are allocated, one for input and the
other for output.
/H hardware handshake selects which hardware handshake
Chapter 3 Page 32
PCI Quad / Lynx 8 Port RS232