IBM Turbo 16/4 Token-Ring PC Card 2, Руководство пользователя

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If the installation program detects Card and Socket Services in your computer, it will
default to Autoset mode. Autoset mode allows your LAN driver to negotiate with
Card Services for memory space and interrupts. This helps to prevent conflicts with
other PC Cards that are installed in your computer; however, you will not know
exactly what memory addresses and interrupts have been given to you. It will
default to Autoset mode if the driver supports it.
Card Services requires Socket Services. The Card Services interface will usually be
provided with the operating system.
Advantages
v
Ability to insert and remove PC Cards without computer reconfiguration and
without damaging the electrical contacts.
v
Automatic allocation of system resources.
v
When used with your Token-Ring software in Autoset mode, automatic
configuration of your PC Card occurs.
Disadvantage
Stay-resident program that uses system memory. The amount varies according to
the type of PC Card support and the drivers used.
Card Services Enabler
If you want to use a Token-Ring device driver that does not have built-in Card
Services support on a system that uses Card Services, CS20TOK.EXE is supplied.
This program is a Card Services Enabler that uses Card and Socket Services to
configure the IBM Turbo 16/4 Token-Ring PC Card 2. As with other enablers, you
must specify the resources desired for the PC Card, and they must agree with the
settings of the Token-Ring device driver for the system to work correctly.
The DOS Card Services 2.00 interface enabler shipped on the CD-ROM is
CS20TOK.EXE.
CS20TOK.EXE
DOS Card Services 2.00 interface enabler. It uses the Card Services
interface to configure the socket and the PC Card. It is used when the
Token-Ring device driver is not a Card Services client driver and a Card
Services environment is desired. It works with DOS Card Services 2.00 and
higher.
Card and Socket Services versus Point Enablers
There is much debate about this. In principle, Card and Socket Services is the
better method of connection because it allows you to insert or remove PC Cards
from any socket, even while the computer is switched on; and it automatically
allocates resources like memory, I/O ports, interrupt levels, and slots.
Point Enablers, of which two are provided with the PC Card, are popular because
they remove themselves from memory after having been loaded—as opposed to
the 30–40 KB needed for Card and Socket Services.
For point enablers, you have to specify the slot in which a particular PC Card will
be used and you have to specify memory locations, interrupt levels, and other
Chapter 6. Point Enablers and Card Services
39