Atmel AVR User Manual

73. LDI – Load Immediate
73.1. Description
Loads an 8-bit constant directly to register 16 to 31.
Operation:
(i) Rd ← K
Syntax: Operands: Program Counter:
(i) LDI Rd,K 16 ≤ d ≤ 31, 0 ≤ K ≤ 255 PC ← PC + 1
16-bit Opcode:
1110 KKKK dddd KKKK
73.2. Status Register (SREG) and Boolean Formula
I T H S V N Z C
– – – – – – – –
Example:
clr r31 ; Clear Z high byte
ldi r30,$F0 ; Set Z low byte to $F0
lpm ; Load constant from Program
; memory pointed to by Z
Words 1 (2 bytes)
Cycles 1
Atmel AVR Instruction Set Manual [OTHER]
Atmel-0856L-AVR-Instruction-Set-Manual_Other-11/2016
115

Atmel AVR Specifications

General

Architecture	8-bit RISC
SRAM	Up to 16 KB
Clock Speed	Up to 20 MHz
Operating Voltage	1.8V to 5.5V
ADC	10-bit ADC
Communication Interfaces	SPI, I2C, USB
Packages	DIP, SOIC, QFN
Special Features	Watchdog Timer
Flash Memory	1KB to 256KB
EEPROM	64B to 4KB