LTC4245 LINER [Linear Technology], LTC4245 Datasheet - Page 23

• Manufacturer Part Number: LTC4245
• Description: Multiple Supply Hot Swap Controller with I2C Compatible Monitoring
• Manufacturer: LINER [Linear Technology]

APPLICATIO S I FOR ATIO
SDA
SCL
CONDITION
START
S
U
U
ADDRESS
S
a6 - a0
1 - 7
ADDRESS
0 1 a4:a0
S
ADDRESS
Figure 16. LTC4245 Serial Bus SDA Alert Response Protocol
S
0 1 a4:a0
Figure 15. LTC4245 Serial Bus SDA Read Word Protocol
Figure 13. LTC4245 Serial Bus SDA Write Word Protocol
Figure 12. LTC4245 Serial Bus SDA Write Byte Protocol
Figure 14. LTC4245 Serial Bus SDA Read Byte Protocol
W
ADDRESS
0 1 a4:a0
W
R/W
0
8
S
FROM MASTER TO SLAVE
FROM SLAVE TO MASTER
S
A
0
Figure 11. Data Transfer over I
W
0
ADDRESS
0 1 a4:a0
COMMAND
ACK
xxx b4:b0
RESPONSE
W
0
ADDRESS
A
0
0001100
9
ALERT
U
A
0
COMMAND
xxx b4:b0
W
0
COMMAND
xxx b4:b0
1 - 7
A
0
A
0
R
1
b7 - b0
DATA
S
COMMAND
xxx b4:b0
A
0
A
0
ADDRESS
0 1 a4:a0
A : ACKNOWLEDGE (LOW)
A : NOT ACKNOWLEDGE (HIGH)
R : READ BIT (HIGH)
W : WRITE BIT (LOW)
S : START CONDITION
P : STOP CONDITION
A
0
S
01 a4:a0 0
ADDRESS
8
DATA
b7:b0
ADDRESS
0 1 a4:a0
DEVICE
A
0
2
R
1
C or SMBus
DATA
b7:b0
A
0
ACK
9
A
0
R
1
xxxxxxxx
DATA
A
1
DATA
b7:b0
A
0
A
0
4245 F16
4245 F12
P
P
1 - 7
DATA
b7:b0
A
0
A
0
b7 - b0
DATA
DATA
b7:b0
4245 F13
A
1
P
4245 F14
P
A
1
8
P
ACK
9
LTC4245
CONDITION
STOP
P
4245 F11
23
4245fa