____ _______________________ ________
| J2 | | J1 | | J3 |
| | |
| : : : :
W1, W2 Jumpers (Master / Slave Selection)
The interface allows up to two drives (a Master and one Slave) to be
attached to the AT/IDE bus. The following table shows the configurations.
||Drive emulates *both* Master and Slave (DEFAULT)
||Drive is Master, Slave is present
||Drive is Master
DRIVE EMULATES BOTH MASTER AND SLAVE
Specifies that one 2217A drive can emulate both the Master drive (Drive 0)
and the Slave drive (Drive 1). This option allows for existing host systems
to utilize the full capacity of the drive.
When the drive is configured as both the Master and the Slave, the Master's
(Drive 0) capacity is set to:
1024 logical cylinders,
16 logical heads, and
63 logical sectors.
This setting yields 528,482,304 bytes.
The Slave's (Drive 1) capacity is set to the remaining storage on the
For this configuration, the recommended drive type setting in your
computer's CMOS memory is as follows:
0 Drive 1
Logical Cylinders: 1024 2128
Capacity (bytes): 528,482,304 1,098,252,288
When the drive is configured as a Master or as a Slave, the
recommended drive type parameters are as follows:
Logical Cylinders: 3152
Logical Heads: 16
Logical Sectors: 63
Capacity (bytes): 1,626,734,592
NOTE: The capacity of the 2217A drive may exceed the capacity that the
host can access. This limitation stems from the communication link between
the DOS and the BIOS. A typical limit is:
1024 cylinders, 16 heads, 63 sectors
NOTE: If you have a machine with a BIOS that supports over 16 heads, you
can set the drive to be a SLAVE or MASTER with one full partition.
To do this, set the drive for:
Logical Cylinders: 788
Logical Heads: 64
Logical Sectors: 63
Capacity (bytes): 1,601,316,864
DRIVE IS MASTER, SLAVE IS PRESENT
Specifies the Master drive (Drive 0) when two 2217A drives are used in the
system. The other drive is the Slave.
DRIVE IS SLAVE
Specifies the Slave drive (Drive 1) when two 2217A drives are used in the
system. The other drive is the Master.
DRIVE IS MASTER
Specifies the Master drive (DRIVE 0) when one 2217A drive is used in a