MAX34441EVKIT# Maxim Integrated, MAX34441EVKIT# Datasheet - Page 16

• Manufacturer Part Number: MAX34441EVKIT#
• Description: Power Management IC Development Tools MAX34441 Eval Kit
• Manufacturer: Maxim Integrated
• Type: PWM Controllersr
• Series: MAX34441r

Specifications of MAX34441EVKIT#

• Rohs: yes
• Product: Power Management Development Tools
• Tool Is For Evaluation Of: MAX34441
• Interface Type: I2C
• Maximum Operating Temperature: + 85 C
• Part # Aliases: 90-34441#K00

PMBus 5-Channel Power-Supply Manager
and Intelligent Fan Controller
Table_1._PMBus_Command_Codes_(continued)
Note_3: The factory-set default value for this 8-byte block is 3130313031303130h.
Note_4:_ The factory-set default value for the complete block of the MFR_NV_FAULT_LOG is FFh.
Note_5:_ The power-on reset value for this 4-byte block is 00000000h.
Note_6:_ The factory-set default value for the complete block of the MFR_FAN_LUT is 00h.
Table_2._PMBus/SMBus_Serial-Port_
Address
16
100kI to V
100kI to V
READ_WORD_FORMAT
READ_BYTE_FORMAT
WRITE_WORD_FORMAT
WRITE_BYTE_FORMAT
SEND_BYTE_FORMAT
S
S
S
S
1
S
1
1
1
1
A1
loaded upon power-on reset or when the RST pin is asserted and the value shown in the Default_Value column is the
value when shipped from the factory. “FIXED” in the Flash_Stored column means this value is fixed at the factory and
cannot be changed.
ADDRESS
ADDRESS
ADDRESS
ADDRESS
ADDRESS
SLAVE
SLAVE
SLAVE
SLAVE
SLAVE
DD
SS
7
7
7
7
7
100kI to V
100kI to V
W
W
W
W
W
100kI to V
100kI to V
1
1
1
1
1
A0
A
A
1
1
A
A
A
1
1
1
DD
DD
SS
SS
COMMAND
COMMAND
COMMAND
COMMAND
COMMAND
CODE
CODE
CODE
CODE
CODE
8
8
8
8
8
1101 101 (DAh)
1101 010 (D4h)
1101 011 (D6h)
1101 100 (D8h)
7-BIT_SLAVE_
ADDRESS
A
A
A
1
1
1
1
A
A
1
DATA BYTE
DATA BYTE
Sr
Sr
1
P
1
1
LOW
8
8
ADDRESS
ADDRESS
SLAVE
SLAVE
7
7
A
A
1
1
On device power-up, the device samples the A0 and A1
pins to determine the PMBus/SMBus serial-port address.
The device implements the PMBus command structure
using the SMBus format. The structure of the data flow
between the host and the slave is shown below for sev-
eral different types of transactions. All transactions begin
with a host sending a command code that is immediately
preceded with a 7-bit slave address (R/W = 0). Data is
sent most significant bit (MSB) first.
DATA BYTE
R
R
1
P
1
1
HIGH
8
A
A
1
1
SMBus/PMBus Communication Examples
DATA BYTE
DATA BYTE
A
1
LOW
8
8
KEY:
S = START
Sr = REPEATED START
P = STOP
W = WRITE BIT (0)
R = READ BIT (1)
A = ACKNOWLEDGE (0)
NA = NOT ACKNOWLEDGE (1)
SHADED BLOCK = SLAVE TRANSACTION
1
P
SMBus/PMBus Operation
NA
1
A
1
DATA BYTE
1
P
HIGH
Address Select
8
NA
1
1
P