Intel SYSTEM 310 Configuration Manual page 17

Operating Features
System 310
PARI Y ERROR DE EC ION
While the System 310 memory does not interrupt the CPU on a Parity
error, the 012B and 056 boards detect and report errors in an 8 bit
status/error register. Parity errors cause on-board LEDs to light up
as a signal that an error has occurred, although you cannot see the
LEDs unless you remove the back panel. t this signal, you can read
the parity errors from this status/error register by issuing an I/O
command in your software. Refer to the individual manuals for the
memory board products listed in the Preface for the meaning of these
lights.
The location of the status/error register depends on the kindI of
memory boards you use. When either one 012B board or one 056
board installed in the System 310, the address of the status/error
register is 00000H. However, two boards cannot use the same
address for the status/error register. So, when combining two b< ^ r ^ s '
such as an 012B board and an 056 board (combination 7 from Table
1-1), use jumpers to change the address of the status/error register
on one of the boards.
The 304 board does not provide parity error detection, nor does the
R M on the processor board.