ST7263BH2 STMicroelectronics, ST7263BH2 Datasheet - Page 132

• Manufacturer Part Number: ST7263BH2
• Description: LOW SPEED USB 8-BIT MCU FAMILY WITH UP TO 32K FLASH/ROM, DFU CAPABILITY, 8-BIT ADC, WDG, TIMER, SCI and I2C
• Manufacturer: STMicroelectronics

Specifications of ST7263BH2

• 4, 8, 16 Or 32 Kbytes Program Memory: high density Flash (HDFlash), FastROM or ROM with Read-Out and Write protection

Instruction set
12.1.2
12.1.3
12.1.4
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Table 49.
Immediate instructions
Immediate instructions have two bytes, the first byte contains the opcode, the second byte
contains the operand value.
Table 50.
Direct
In Direct instructions, the operands are referenced by their memory address.
The direct addressing mode consists of two sub-modes:
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 sub-modes:
Indexed (No Offset)
There is no offset, (no extra byte after the opcode), and allows 00 - FF addressing space.
SLL, SRL, SRA, RLC, RRC
Immediate instruction
ADC, ADD, SUB, SBC
Inherent instructions (continued)
Immediate instructions
Inherent instruction
AND, OR, XOR
CPL, NEG
BCP
SWAP
CP
LD
MUL
Doc ID 7516 Rev 8
Shift and Rotate Operations
Arithmetic Operations
Logical Operations
1 or 2 Complement
Byte Multiplication
Bit Compare
Swap Nibbles
Function
Compare
Function
Load
ST7263Bxx