Cotek AD-1500 - Ad Pmbus; Overview; Wiring; Connection of Communication System; PMBUS Addressing

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2. AD PMBUS
2-1. Overview
PMBus is a cost effective, two-wire interface that is an extension of the SMBus standard,
which is built from the I2C protocol. Similar to SMBus, PMBus requires a minimum of
two wires for communication, including the clock signal, SMBCLK, and data signal,
SMBDAT.
2-2. Wiring / connection of communication system
2-3. PMBUS Addressing
Device
Slave Address
Address Bits (MSB to LSB)
AD
0x50
1
0
1
0
0
0
0
R/W
2-4. PMBUS Clock Speed
AD supports I
2
C clock speed up to 100 KHz. Faster speed can be used if signal
rise time for SDA and SCL meet I
2
C specification.