文档介绍：单片机英文参照文件
单片机英文参照文件
单片机英文参照文件
Structure and function of the MCS-51 series
Structure and functionoscillator
and clock
produce
circuit,
quartz
crystal
finely
tune
electric
capacity
need
outer.
Allow
oscillation
frequency
as
12
megahertas now at most. Every the
above-mentioned
part
was joined
through
the inside data bus .Among them, CPU is a core of the one-chip computer,
it
is the control
of the computer and commandcentre,
madeup of such parts
as arithmetic unit and controller , etc.. The arithmetic unit can carry
on 8 persons
of arithmetic
operation
and unit
ALUof
logic
operation
while
including one, the 1 storing device temporarilies of 8, storing device
2 temporarily,
8's
accumulation
device
ACC, register
B and procedure
state
register
PSW,etc.
Person who accumulate
ACCcount by 2 input ends entered
of
checking
etc.
temporarily
as one operation
often,
come from person
who
store 1 operation
is it
is
it
makeoperation to
go on to count temporarily
,
operation result and loopback ACC with another one. In addition, ACC is
often regarded as the transfer
station
of data transmission
on 8051 inside .
The same as general microprocessor, it is the busiest register. Help
remembering that agreeing with A expresses in the order. The controller