RAMSDClose
SPortSel whichPort ; sPortA=modem port; sPortB=printer port
Apple no longer recommends the use of RAMSDOpen. Instead, use RAMSDClose closes the RAM input and output drivers for either a printer port or a modem port. It should only be used on machines with 64K ROMs.
whichPort is the parameter that identifies the port as being either the modem
port or the printer port.
Notes: We are warned that a RAM Serial Driver must be closed with