參數(shù)資料
型號： ST72E85A5G0
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 8-BIT, UVPROM, 4.332 MHz, MICROCONTROLLER, CQFP80
封裝： WINDOWED, CERAMIC, QFP- 80
文件頁數(shù)： 97/117頁
文件大?。?/td> 748K
代理商： ST72E85A5G0
80/117
ST7285C
ST7 ADDRESSING MODES(Cont’d)
Inherent:
All related instructions are single byte ones. The
op-code fully specify all required information for
the CPU to process the operation. These instruc-
tions are single byte ones.:
Immediate:
The required data byte to do the operation is fol-
lowing the op-code. These are two byte instruc-
tions, one for the op-code and the other one for the
immediate data byte.
Direct (short, long):
The data byte required to carry out the operation is
found by its memory address, which follows the
op-code.
The direct addressing mode consists of two sub-
modes:
Direct (short):
The address is a byte, thus require only one byte
after the op-code, but only allow 00 - FF address-
ing space.
Direct (long):
The address is a word, thus allowing 64Kb ad-
dressing space, but requires 2 bytes after the op-
code.
Inherent Instruction
Function
NOP
No operation
TRAP
S/W Interrupt
WFI
Wait For Interrupt (Low Pow-
er Mode)
HALT
Halt Oscillator (Lowest Pow-
er Mode)
RET
Sub-routine Return
IRET
Interrupt Sub-routine Return
SIM
Set Interrupt Mask
RIM
Reset Interrupt Mask
SCF
Set Carry Flag
RCF
Reset Carry Flag
RSP
Reset Stack Pointer
LD
Load
CLR
Clear
PUSH/POP
Push/Pop to/from the stack
INC/DEC
Increment/Decrement
TNZ
Test Negative or Zero
CPL, NEG
1 or 2 Complement
MUL
Byte Multiplication
SLL, SRL, SRA, RLC,
RRC
Shift and Rotate Operations
SWAP
Swap Nibbles
Immediate Instruction
Function
LD
Load
CP
Compare
BCP
Bit Compare
AND, OR, XOR
Logical Operations
ADC, ADD, SUB, SBC
Arithmetic Operations
Available Lon g and
Short Direct Instructions
Function
LD
Load
CP
Compare
AND, OR, XOR
Logical Operations
ADC, ADD, SUB, SBC
Arithmetic Additions/Sub-
stractions operations
BCP
Bit Compare
Short Direct
Instructions Only
Function
CLR
Clear
INC, DEC
Increment/Decrement
TNZ
Test Negative or Zero
CPL, NEG
1 or 2 Complement
BSET, BRES
Bit Operations
BTJT, BTJF
Bit Test and Jump Operations
SLL, SRL, SRA, RLC,
RRC
Shift and Rotate Operations
SWAP
Swap Nibbles
CALL, JP
Call or Jump subroutine
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