Справочник Пользователя для Intel 80C186EA
80C186EA/80C188EA, 80L186EA/80L188EA
REVISION HISTORY
Intel 80C186EA/80L186EA devices are marked with
a 9-character alphanumeric Intel FPO number un-
derneath the product number. This data sheet up-
date is valid for devices with an ‘‘A’’, ‘‘B’’, ‘‘C’’, ‘‘D’’,
or ‘‘E’’ as the ninth character in the FPO number, as
illustrated in Figure 5 for the 68-lead PLCC package,
Figure 6 for the 84-lead QFP (EIAJ) package, and
Figure 7 for the 80-lead SQFP device. Such devices
may also be identified by reading a value of 01H,
02H, 03H from the STEPID register.
a 9-character alphanumeric Intel FPO number un-
derneath the product number. This data sheet up-
date is valid for devices with an ‘‘A’’, ‘‘B’’, ‘‘C’’, ‘‘D’’,
or ‘‘E’’ as the ninth character in the FPO number, as
illustrated in Figure 5 for the 68-lead PLCC package,
Figure 6 for the 84-lead QFP (EIAJ) package, and
Figure 7 for the 80-lead SQFP device. Such devices
may also be identified by reading a value of 01H,
02H, 03H from the STEPID register.
This data sheet replaces the following data sheets:
272019-002Ð80C186EA
272020-002Ð80C188EA
272021-002Ð80L186EA
272022-002Ð80L188EA
272307-001ÐSB80C186EA/SB80L186EA
272308-001ÐSB80C188EA/SB80L188EA
272020-002Ð80C188EA
272021-002Ð80L186EA
272022-002Ð80L188EA
272307-001ÐSB80C186EA/SB80L186EA
272308-001ÐSB80C188EA/SB80L188EA
ERRATA
An 80C186EA/80L186EA with a STEPID value of
01H or 02H has the following known errata. A device
with a STEPID of 01H or 02H can be visually identi-
fied by noting the presence of an ‘‘A’’, ‘‘B’’, or ‘‘C’’
alpha character, next to the FPO number. The FPO
number location is shown in Figures 5, 6, and 7.
01H or 02H has the following known errata. A device
with a STEPID of 01H or 02H can be visually identi-
fied by noting the presence of an ‘‘A’’, ‘‘B’’, or ‘‘C’’
alpha character, next to the FPO number. The FPO
number location is shown in Figures 5, 6, and 7.
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 consistantly, it is dependent on in-
terrupt timing.
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 consistantly, it is dependent on in-
terrupt timing.
An 80C186EA/80L186EA with a STEPID value of
03H has no known errata. A device with a STEPID of
03H can be visually identified by noting the presence
of a ‘‘D’’ or ‘‘E’’ alpha character next to the FPO
number. The FPO number location is shown in Fig-
ures 5, 6, and 7.
03H has no known errata. A device with a STEPID of
03H can be visually identified by noting the presence
of a ‘‘D’’ or ‘‘E’’ alpha character next to the FPO
number. The FPO number location is shown in Fig-
ures 5, 6, and 7.
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