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4. Host Adapter Configuration Jumpers:

* Starting BIOS Address, ST01 and ST02:

C800H is the 16K BIOS address (default). For the 8K
BIOS, the default address is CA00H. If there is a board
already installed at the default address in the system,
use the jumpers to change to another address. Refer to
Figures 1-3 and Tables 4-5

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[q]

Register Emulation, ST02 Only:

Many personal computers that are compatible with the
IBM PC AT check at boot time to verify that an
AT-compatible diskette/hard drive controller is
present. If not, then an XT-compatible diskette
controller is assumed and only 360 KByte diskette
drives are supported.

A jumper is provided to enable emulation of this
register (01F4H). Refer to Figure 3 and Table 9.

The default is to enable emulation. In PC and PC XT
environments, it is not used and may be safely left
installed. It should be used in PC AT compatible
systems; removing the jumper may prevent use of 1.2
MByte and other (non-360 KByte) format diskette drives.

Emulation should be disabled if the system already has
a hard disc controller installed

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