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ST7LITEUS2 Datasheet(PDF) 88 Page - STMicroelectronics

Part # ST7LITEUS2
Description  Interrupt management
PDF  136 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7LITEUS2 Datasheet(HTML) 88 Page - STMicroelectronics

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Instruction set
ST7LITEUS2, ST7LITEUS5
88/136
11.1.7
Relative modes (direct, indirect)
This addressing mode is used to modify the PC register value by adding an 8-bit signed
offset to it.
The relative addressing mode consists of two submodes:
Relative mode (Direct)
The offset follows the opcode.
Relative mode (Indirect)
The offset is defined in memory, of which the address follows the opcode.
11.2
Instruction groups
The ST7 family devices use an Instruction Set consisting of 63 instructions. The instructions
may be subdivided into 13 main groups as illustrated in the following table:
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
Table 39.
Instructions supporting direct, indexed, indirect and indirect indexed
addressing modes (continued)
Instructions
Function
Table 40.
Instructions supporting relative modes
Available relative direct/indirect instructions
Function
JRxx
Conditional jump
CALLR
Call relative
Table 41.
ST7 instruction set
Load and Transfer
LD
CLR
Stack operation
PUSH
POP
RSP
Increment/Decrement
INC
DEC
Compare and tests
CP
TNZ
BCP
Logical operations
AND
OR
XOR
CPL
NEG
Bit operation
BSET
BRES
Conditional bit test and branch
BTJT
BTJF
Arithmetic operations
ADC
ADD
SUB
SBC
MUL
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