ltc4266a Linear Technology Corporation, ltc4266a Datasheet - Page 12

• Manufacturer Part Number: ltc4266a
• Description: Quad Poe/poe+/ltpoe++ Pse Controller
• Manufacturer: Linear Technology Corporation

LTC4266A/LTC4266C
I
12
2
C TIMING DIAGRAMS
SDA
SDA
SCL
SCL
0
0
START BY
MASTER
START BY
MASTER
ALERT RESPONSE ADDRESS BYTE
0
1
SERIAL BUS ADDRESS BYTE
0
0
Figure 8. Reading the Interrupt Register (Short Form)
AD3 AD2 AD1 AD0
Figure 9. Reading from Alert Response Address
1
FRAME 1
FRAME 1
1
0
0
R/W ACK
R/W ACK
D7
0
ACK BY
SLAVE
ACK BY
SLAVE
D6
1
SERIAL BUS ADDRESS BYTE
D5
0
DATA BYTE
AD3
D4
FRAME 2
FRAME 2
AD2 AD1 AD0
D3
D2
NO ACK BY
NO ACK BY
MASTER
MASTER
D1
D0
1
ACK
ACK
4266AC F08
4266AC F09
STOP BY
MASTER
STOP BY
MASTER
4266acfa