Author :
Craig
Steiner
Source :
8052.com
Book :
The
8051/8052
Microcontroller:
Architecture,
Assembly
Language,
And
Hardware
Interfacing
(Paperback)
Other
SFRs
The
chart
above is
a
summary
of all
the SFRs
that
exist in
a
standard
8051.
All
derivative
microcontrollers
of the
8051
must
support
these
basic
SFRs in
order to
maintain
compatibility
with the
underlying
MSCS51
standard.
A common
practice
when
semiconductor
firms
wish to
develop
a new
8051
derivative
is to
add
additional
SFRs to
support
new
functions
that
exist in
the new
chip.
>>>
Enter
here for
detail
on "Non
Standard SFR's"
<<<