L9803 STMicroelectronics, L9803 Datasheet - Page 110

• Manufacturer Part Number: L9803
• Description: Super Smart Power Motor Driver With 8-bit Mcu, Ram, Eeprom, Adc, Wdg, Timers, Pwm And H-bridge Driver
• Manufacturer: STMicroelectronics

Instruction Set
110/126
Indirect Indexed (short, long):
This is a combination of indirect and short indexed addressing modes. The operand is
referenced by its memory address, which is defined by the unsigned addition of an index
register value (X or Y) with a pointer value located in memory. The pointer address follows
the opcode.
The indirect indexed addressing mode consists of two sub-modes:
Indirect Indexed (short):
The pointer address is a byte, the pointer size is a byte, thus allowing 00 - 1FE addressing
space, and requires 1 byte after the opcode.
Indirect Indexed (long):
The pointer address is a byte, the pointer size is a word, thus allowing 64Kb addressing
space, and requires 1 byte after the opcode.
Relative mode (direct, indirect):
This addressing mode is used to modify the PC register value, by adding an 8 bit signed
offset to it.
Long and Short Indirect Indexed
Instructions
LD
CP
AND, OR, XOR
ADC, ADD, SUB, SBC
BCP
Short Indirect Indexed Instructions Only
Available Relative Direct/Indirect
Instructions
JRxx
CALLR
SLL, SRL, SRA, RLC, RRC
BSET, BRES
BTJT, BTJF
CPL, NEG
INC, DEC
CALL, JP
SWAP
CLR
TNZ
Function
Function
Load
Compare
Logical Operations
Arithmetic Additions/Substructions operations
Bit Compare
Function
Conditional Jump
Call Relative
Bit Test and Jump Operations
Shift and Rotate Operations
Call or Jump subroutine
Increment/Decrement
Test Negative or Zero
1 or 2 Complement
Bit Operations
Swap Nibbles
Clear
L9803