Datasheet

18.4.19. PINF – The Port F 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.
Note: PORTF and DDRF Registers are not available in ATmega103 compatibility mode where Port F
serves as digital input only.
Name: PINF
Offset: 0x00
Reset: N/A
Property: When addressing I/O Registers as data space the offset address is 0x20
Bit 7 6 5 4 3 2 1 0
PINF7 PINF6 PINF5 PINF4 PINF3 PINF2 PINF1 PINF0
Access
R R R R R R R R
Reset x x x x x x x x
Bits 7:0 – PINFn: Port F Input Pins Address [n = 7:0]
Atmel ATmega64A [DATASHEET]
Atmel-8160E-ATmega64A_Datasheet_Complete-09/2015
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