ST72345C4 STMicroelectronics, ST72345C4 Datasheet - Page 192

• Manufacturer Part Number: ST72345C4
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST72345C4

• Up To 16 Kbytes Program Memory: single voltage extended Flash (XFlash) with readout and write protection, in-circuit and inapplication programming (ICP and IAP). 10K write/erase cycles guaranteed, data retention
• 256 Bytes Data Eeprom With Readout Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55 °C.
• Clock Sources: crystal/ceramic resonator oscillators, high-accuracy internal RC oscillator or external clock
• 5 Power-saving Modes: Slow, Wait, Halt, Auto-wakeup from Halt and Active-halt
• 16-bit Timer A With: 1 input capture, 1 output compares, external clock input, PWM and pulse generator modes
• 16-bit Timer B With: 2 input captures, 2 output compares, PWM and pulse generator modes

Instruction set
12.1.2
12.1.3
12.1.4
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Table 77.
Immediate
Immediate instructions have 2 bytes, the first byte contains the opcode, the second byte
contains the operand value.
Table 78.
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 1 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:
SLL, SRL, SRA, RLC, RRC
SWAP
LD
CP
BCP
AND, OR, XOR
ADC, ADD, SUB, SBC
Inherent instruction
Immediate instruction
Inherent instructions (continued)
Immediate instructions
Doc ID 12321 Rev 5
Shift and Rotate Operations
Swap Nibbles
Load
Compare
Bit Compare
Logical Operations
Arithmetic Operations
Function
Function
ST72344xx ST72345xx