80C186XL/80C188XL
1. An internal condition with the interrupt controller
can cause no acknowledge cycle on the INTA1
line in response to INT1. This errata only occurs
when Interrupt 1 is configured in cascade mode
and a higher priority interrupt exists. This errata
will not occur consistently, it is dependent on in-
terrupt timing.
REVISION HISTORY
This data sheet replaces the following data sheets:
272031-002 80C186XL
#
270975-002 80C188XL
272309-001 SB80C186XL
272310-001 SB80C188XL
#
#
#
The C step 80C186XL/80C188XL has no known er-
rata. The C step can be identified by the presence of
a ‘‘C’’ or ‘‘D’’ alpha character next to the FPO num-
ber. The FPO number location is shown in Figure 4.
ERRATA
An A or B step 80C186XL/80C188XL has the follow-
ing errata. The A or B step 80C186XL/80C188XL
can be identified by the presence of an ‘‘A’’ or ‘‘B’’
alpha character, respectively, next to the FPO num-
ber. The FPO number location is shown in Figure 4.
PRODUCT IDENTIFICATION
Intel 80C186XL devices are marked with a 9-charac-
ter alphanumeric Intel FPO number underneath the
product number. This data sheet (272431-001) is
valid for devices with an ‘‘A’’, ‘‘B’’, ‘‘C’’, or ‘‘D’’ as
the ninth character in the FPO number, as illustrated
in Figure 4.
48
ETC [ ETC ]
