MAX8688ALETG/GH9 Maxim Integrated, MAX8688ALETG/GH9 Datasheet - Page 22

• Manufacturer Part Number: MAX8688ALETG/GH9
• Description: Current & Power Monitors & Regulators
• Manufacturer: Maxim Integrated

Specifications of MAX8688ALETG/GH9

• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 3 V
• Operating Temperature Range: - 40 C to + 85 C

Digital Power-Supply Controller/Monitor
with PMBus Interface
Figure 13. SMBus Group Command Protocol
Figure 14. SMBus Write Timing Diagram
Figure 15. SMBus Read Timing Diagram
22
______________________________________________________________________________________
SCL
SDA
SDA
SCL
A = START CONDITION.
B = MSB OF ADDRESS CLOCKED INTO SLAVE.
C = LSB OF ADDRESS CLOCKED INTO SLAVE.
D = R/W BIT CLOCKED INTO SLAVE.
E = SLAVE PULLS SDA LINE LOW.
A = START CONDITION.
B = MSB OF ADDRESS CLOCKED INTO SLAVE.
C = LSB OF ADDRESS CLOCKED INTO SLAVE.
D = R/W BIT CLOCKED INTO SLAVE.
E = SLAVE PULLS SDA LINE LOW.
t
SU;STA
t
SU;STA
A
A
t
t
HD;STA
HD;STA
SR
SR
SR
S
t
t
LOW
LOW
SLAVE ADDRESS OF
DEVICE 1
SLAVE ADDRESS OF
DEVICE 2
SLAVE ADDRESS OF
DEVICE 3
SLAVE ADDRESS OF
DEVICE n
B
B
t
t
HIGH
HIGH
ADDR1
ADDR2
ADDR3
ADDRn
7 BITS
7 BITS
7 BITS
7 BITS
t
SU;DAT
t
SU;DAT
C
C
W A
W A
W A
W
A
COMMAND BYTE FOR
DEVICE 1
COMMAND BYTE FOR
DEVICE 2
COMMAND BYTE FOR
DEVICE 3
COMMAND BYTE FOR
DEVICE n: NO DATA BYTE
F = ACKNOWLEDGE BIT CLOCKED INTO MASTER.
G = MSB OF DATA CLOCKED INTO SLAVE.
H = LSB OF DATA CLOCKED INTO SLAVE.
I = SLAVE PULLS SDA LINE LOW.
F = ACKNOWLEDGE BIT CLOCKED INTO MASTER.
G = MSB OF DATA CLOCKED INTO MASTER.
H = LSB OF DATA CLOCKED INTO MASTER.
I = MASTER PULLS SDA LINE LOW.
D
D
8 BITS
8 BITS
8 BITS
8 BITS
CMD1
CMD2
CMD3
CMDn
E
E
F
F
A
A
A
A
DATA BYTES FOR DEVICE 1
DATA BYTES FOR DEVICE 2
DATA BYTES FOR DEVICE 3
t
P
t
HD;DAT
HD;DAT
DATA0
DATA0
8 BITS
8 BITS
8 BITS
DATA
G
G
A
A
A
S
SR = REPEATED START CONDITION.
P
H
H
= START CONDITION.
= STOP CONDITION.
= SLAVE TRANSMISSION.
DATA1
DATA1
J = ACKNOWLEDGE CLOCKED INTO MASTER.
K = ACKNOWLEDGE CLOCK PULSE.
L = STOP CONDITION, DATA EXECUTED BY SLAVE.
M = NEW START CONDITION.
8 BITS
8 BITS
J = ACKNOWLEDGE CLOCKED INTO SLAVE.
K = ACKNOWLEDGE CLEAR PULSE.
L = STOP CONDITION.
M = NEW START CONDITION.
I
I
J
J
K
A
A
K
t
SU;STO
t
SU;STO
L
L
t
BUF
t
BUF
M
M