參數(shù)資料
型號: ST63E69D1
廠商: 意法半導體
英文描述: 8-BIT HCMOS MCU FOR DIGITAL CONTROLLED MULTI FREQUENCYMONITOR
中文描述: 8位HCMOS單片機的數(shù)控多FREQUENCYMONITOR
文件頁數(shù): 10/71頁
文件大?。?/td> 584K
代理商: ST63E69D1
ST6369 CORE
The Core of the ST6369 is implemented inde-
pendently from the I/O or memory configuration.
Consequently,it can be treatedas an independent
centralprocessorcommunicatingwithI/Oandmem-
oryvia internaladdresses,data,andcontrolbusses.
The in-core communication is arranged as shown
in the followingblock diagram figure; the controller
being externallylinked to boththereset andthe os-
cillator, whilethecore is linkedto the dedicatedon-
chip macrocellsperipherals via the serial data bus
and indirectly for interrupt purposes through the
control registers.
Registers
The ST6369 Core has five registers and three
pairs of flags available to the programmer. They
are shown in Figure 4 and areexplainedin the fol-
lowing paragraphs together with the program and
data memorypage registers.
Accumulator (A).
The accumulator is an 8-bit
general purpose register used in all arithmeticcal-
culations, logical operations, and data manipula-
tions. The accumulator is addressed in the data
space asRAM locationat the FFH address.
Accordingly, the ST6369 instruction set can use
the accumulatoras any other register of the data
space.
Figure3. Core Block Diagram
SHORT
DIRECT
ADDRESSING
MODE
V REGISTER
W REGISTER
PROGRAM COUNTER
SIX LEVELS
STACKREGISTER
C
C
C
Z
Z
Z
NORMAL FLAGS
INTERRUPT FLAGS
NMI FLAGS
INDEX
REGISTER
VA000423
b7
b7
b7
b7
b7
b0
b0
b0
b0
b0
b0
b11
ACCUMULATOR
Y REG. POINTER
X REG. POINTER
Figure 4. Core ProgrammingModel
ST6369
6/67
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