10.6.2 EEPROM Address Register Low and High Byte
The EEARL and EEARH register pair represents the 16-bit value, EEAR. The low byte [7:0] (suffix L) is accessible at the original offset. The high byte [15:8] (suffix H) can be accessed at offset + 0x01. For more details on reading and writing 16-bit registers, refer to accessing 16-bit registers in the section above.
When addressing I/O registers as data space using LD and ST instructions, the provided offset must be used. When using the I/O specific commands IN and OUT, the offset is reduced by 0x20, resulting in an I/O address offset within 0x00 - 0x3F.
The device is a complex microcontroller with more peripheral units than can be supported within the 64 locations 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: | EEARL and EEARH |
| Offset: | 0x41 |
| Reset: | 0xXX |
| Property: | When addressing as I/O Register: address offset is 0x21 |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| EEAR[9:8] | |||||||||
| Access | R/W | R/W | |||||||
| Reset | x | x | |||||||
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| EEAR[7:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | R/W | R/W | R/W | R/W | |
| Reset | x | x | x | x | x | x | x | x | |