ST72561J9-Auto STMicroelectronics, ST72561J9-Auto Datasheet - Page 266

• Manufacturer Part Number: ST72561J9-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST72561J9-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years at 55 °C
• 5 Power Saving Modes: halt, auto wake up from halt, active halt, wait and slow

Instruction set
19.1.2
19.1.3
19.1.4
19.1.5
266/324
Immediate
Immediate instructions have 2 bytes, the first byte contains the opcode, the second byte
contains the operand value.
Direct
In direct instructions, the operands are referenced by their memory address.
The direct addressing mode consists of two submodes:
Direct (short)
The address is a byte, thus requires only one byte after the opcode, but only allows 00 - FF
addressing space.
Direct (long)
The address is a word, thus allowing 64 Kbyte addressing space, but requires 2 bytes after
the opcode.
Indexed (no offset, short, long)
In this mode, the operand is referenced by its memory address, which is defined by the
unsigned addition of an index register (X or Y) with an offset.
The indirect addressing mode consists of three submodes:
Indexed (no offset)
There is no offset, (no extra byte after the opcode), and allows 00 - FF addressing space.
Indexed (short)
The offset is a byte, thus requires only one byte after the opcode and allows 00 - 1FE
addressing space.
Indexed (long)
The offset is a word, thus allowing 64 Kbyte addressing space and requires 2 bytes after the
opcode.
Indirect (short, long)
The required data byte to do the operation is found by its memory address, located in
memory (pointer).
LD
CP
BCP
AND, OR, XOR
ADC, ADD, SUB, SBC
Immediate instruction
Doc ID 12370 Rev 8
Load
Compare
Bit compare
Logical operations
Arithmetic operations
Function
ST72561-Auto