se98a NXP Semiconductors, se98a Datasheet - Page 13

• Manufacturer Part Number: se98a
• Description: Ddr Memory Module Temp Sensor, 1.7 V To 3.6 V
• Manufacturer: NXP Semiconductors

NXP Semiconductors
SE98A_1
Product data sheet
Fig 9.
Fig 10. SMBus/I
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. NA = Not Acknowledge bit. W = Write bit = 0. R = Read bit = 1.
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 repeat 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
D9
A0
D9
A0
A0
7
7
7
7
7
Rev. 01 — 5 March 2009
D8
W
D8
W
8
8
R
8
8
8
by device
by device
by device
by device
by host
ACK
ACK
ACK
ACK
ACK
A
A
9
9
9
A
9
A
9
A
(cont.)
(cont.)
D7
D7
D7
D7
1
1
1
1
DDR memory module temp sensor, 1.7 V to 3.6 V
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. 2009. All rights reserved.
D0
D0
D0
D0
8
8
8
8
by device
by device
by device
SE98A
by host
ACK
NACK
ACK
ACK
A
NA
A
A
9
9
9
9
002aab412
002aab413
(cont.)
(cont.)
(cont.)
(cont.)
by host
by host
STOP
STOP
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P
P