Datasheet

18.4.4. PINA – Port A Input Pins Address
When using the I/O specific commands IN and OUT, the I/O addresses 0x00 - 0x3F must be used. When
addressing I/O Registers as data space using LD and ST instructions, 0x20 must be added to these offset
addresses. The device is a complex microcontroller with more peripheral units than can be supported
within the 64 location reserved in Opcode for the IN and OUT instructions. For the Extended I/O space
from 0x60 in SRAM, only the ST/STS/STD and LD/LDS/LDD instructions can be used.
Name: PINA
Offset: 0x19
Reset: 0
Property: When addressing I/O Registers as data space the offset address is 0x39
Bit 7 6 5 4 3 2 1 0
PINA7 PINA6 PINA5 PINA4 PINA3 PINA2 PINA1 PINA0
Access
R R R R R R R R
Reset 0 0 0 0 0 0 0 0
Bits 7:0 – PINAn: Port A Input Pins Address [n = 7:0]
Atmel ATmega64A [DATASHEET]
Atmel-8160E-ATmega64A_Datasheet_Complete-09/2015
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