Intel SYSTEM 310 Hardware Integration Manual page 40

Adding Compatible Products System 310
♦Intel supports this board in 86-based configurations, but does not
supply it as part of the preconfigured System 310.
Table 4-3. Compatible Disk Controllers
C ntr ller
B ard
Descripti n
Systems
Where Used
1SBX 218A
Diskette drive c ntr ller
iSBC 215G
Winchester drive
c ntr ller
-2,-3,-5
iSBC 220
SMD drive c ntr ller
N ne *
Notes:
• The 215G board needs the 213A data separator and the
Winchester scrambler board when controlling 5z-inch drives.
(The 213 A board is not required for 8-inch drives.)
• Changing interrupt assignments to accommodate the controller
board requires jumper changes to the processor board. Refer
to the System 310 Disk Configuration Guide for jumper changes.
• There are two sets of firmware on the processor board. Which set
you have depends on where the 218 A controller board is located.
The System 310 Disk Configuration Guide explains when and how
to change firmware.
• The 218 A controller board needs no special configuration when
mounted on a 215G controller board.
Installing the 218A
controller on the 86/30 processor, however, requires different
firmware and several jumper changes to both boards. You can
mount the 218 A controller on any board with an iSBX connector.
• Software drivers in the iRMX operating systems disable
interrupts when the 218A controller board is mounted on the
processor board. Because this prevents Direct Memory Accesses
(DMA), real-time system performance is degraded. The 218A
controller yields the most efficient performance when mounted
on the 215G controller board, where you may use interrupts.
• XENIX does not support configurations where the 218A is
mounted on the processor board.
COMPA IBLE APE CON ROLLERS
While not part of a preconfigured system, tape controller boards
allow the System 310 to support two kinds of external tape drives,
listed in Table 4-4.
4-4