se97b NXP Semiconductors, se97b Datasheet - Page 14

• Manufacturer Part Number: se97b
• Description: Ddr Memory Module Temp Sensor With Integrated Spd
• Manufacturer: NXP Semiconductors

NXP Semiconductors
SE97B_1
Product data sheet
Fig 7.
Fig 8.
SDA
SDA
SCL
SCL
SDA
SDA
SDA
SCL
SCL
SCL
repeated
by host
by host
START
START
by host
START
by host
SR
S
S
A = ACK = Acknowledge bit. W = Write bit = 0. R = Read bit = 1.
SMBus/I
A = ACK = Acknowledge bit. A = NACK = No Acknowledge bit. W = Write bit = 0. R = Read bit = 1.
SMBus/I
D15
D15
A6
A6
A6
1
1
1
1
1
D14
2
2
D14
A5
A5
A5
C-bus write to the Pointer register followed by a write data word
C-bus write to Pointer register followed by a repeated START and an immediate data word read
2
2
2
2
2
returned most significant byte data
most significant byte data
device address and write
device address and write
device address and read
D13
D13
A4
A4
A4
3
3
3
3
3
D12
D12
A3
A3
A3
4
4
4
4
4
D11
D11
A2
A2
A2
5
5
5
5
5
D10
D10
A1
A1
A1
6
6
6
6
6
A0
D9
A0
A0
D9
7
7
7
7
7
Rev. 01 — 27 January 2010
D8
D8
W
W
8
8
R
8
8
8
by device
by device
by device
by device
by host
ACK
ACK
DDR memory module temp sensor with integrated SPD
ACK
ACK
ACK
A
A
9
9
A
A
A
9
9
9
(cont.)
D7
(cont.)
D7
D7
D7
1
1
1
1
D6
D6
D6
D6
2
2
2
2
returned least significant byte data
D5
D5
D5
D5
3
3
least significant byte data
3
3
write register address
read register address
D4
D4
D4
D4
4
4
4
4
D3
D3
D3
D3
5
5
5
5
D2
D2
D2
D2
6
6
6
6
D1
D1
D1
D1
7
7
7
7
© NXP B.V. 2010. All rights reserved.
D0
D0
D0
D0
8
8
8
8
by device
by device
by device
SE97B
by host
ACK
NACK
ACK
ACK
A
A
9
9
A
A
9
9
002aab412
002aac686
(cont.)
(cont.)
(cont.)
(cont.)
by host
by host
STOP
STOP
P
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P