ATTINY5-MAH Atmel, ATTINY5-MAH Datasheet - Page 8

• Manufacturer Part Number: ATTINY5-MAH
• Description: IC MCU AVR 512B FLASH 8UDFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY5-MAH

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 12MHz
• Peripherals: POR, PWM, WDT
• Number Of I /o: 4
• Program Memory Size: 512B (256 x 16)
• Program Memory Type: FLASH
• Ram Size: 32 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-UFDFN Exposed Pad
• Core: AVR8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

4.4
4.4.1
8
General Purpose Register File
ATtiny4/5/9/10
The X-register, Y-register, and Z-register
The Register File is optimized for the AVR Enhanced RISC instruction set. In order to achieve
the required performance and flexibility, the following input/output schemes are supported by the
Register File:
Figure 4-2
Figure 4-2.
Note:
Most of the instructions operating on the Register File have direct access to all registers, and
most of them are single cycle instructions.
Registers R26..R31 have some added functions to their general purpose usage. These registers
are 16-bit address pointers for indirect addressing of the data space. The three indirect address
registers X, Y, and Z are defined as described in
• One 8-bit output operand and one 8-bit result input
• Two 8-bit output operands and one 8-bit result input
• One 16-bit output operand and one 16-bit result input
A typical implementation of the AVR register file includes 32 general prupose registers but
ATtiny4/5/9/10 implement only 16 registers. For reasons of compatibility the registers are num-
bered R16...R31, not R0...R15.
Registers
Purpose
Working
General
below shows the structure of the 16 general purpose working registers in the CPU.
AVR CPU General Purpose Working Registers
7
R16
R17
R18
R26
R27
R28
R29
R30
R31
…
0
Figure
4-3.
X-register High Byte
Y-register High Byte
Z-register High Byte
X-register Low Byte
Z-register Low Byte
Y-register Low Byte
8127D–AVR–02/10