1-Wire - Frame Format

Output Frame Format

Frame Type: "reset"

Property

Type

Description

• Reset pulse

Frame Type: "presence"

Property

Type

Description

• Presence Pulse

Frame Type: "rom_command"

Property	Type	Description
description	str	read, skip, search, or match
rom_command	bytes	The command byte

• ROM command. This is the first command issued by the master after a presence pulse

Frame Type: "crc"

Property	Type	Description
crc	bytes	The CRC byte

• 8 bit CRC, last part of the 64 bit identifier

Frame Type: "family_code"

Property	Type	Description
family	bytes	The family code, which is the first part of the 64 bit identifier

• The family code of the device ID

Frame Type: "id"

Property	Type	Description
id	int	48 bit integer, taken from the center of the 64 bit identifier

• The 48 bit device identifier

Frame Type: "data"

Property	Type	Description
data	bytes	A single data byte

• Data byte after the ROM command and identifier

Frame Type: "invalid_rom_command"

Property	Type	Description
rom_command	bytes	The ROM command byte

• Unknown ROM command

Frame Type: "alarm"

Property	Type	Description
rom_command	bytes	The command byte

• Alarm search command