SE97 NXP [NXP Semiconductors], SE97 Datasheet - Page 21

• Manufacturer Part Number: SE97
• Description: DDR memory module temp sensor with integrated SPD, 3.3 V
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
SE97_5
Product data sheet
Fig 20. Sequential read timing
SDA
7.10.3.3 Sequential read
START condition
S
1
slave address (memory)
0
If the master acknowledges the first data byte transmitted by the SE97, then the device
will continue transmitting as long as each data byte is acknowledged by the master
(Figure
will ‘wrap around’ to the beginning of memory, and so on. Sequential Read works with
either ‘Immediate Address Read’ or ‘Selective Read’, the only difference being the starting
byte address.
1
Fig 19. Selective read timing
0
A2 A1 A0
20). If the end of memory is reached during sequential Read, the address counter
SDA
R/W acknowledge
1
S
START condition
S
START condition
A
from slave
1
1
slave address (memory)
slave address (memory)
Rev. 05 — 6 August 2009
0
0
DDR memory module temp sensor with integrated SPD, 3.3 V
1
1
data from memory
0
0
DATA n
A2 A1 A0
A2 A1 A0
acknowledge
from master
R/W acknowledge
R/W acknowledge
0
1
A
from slave
A
from slave
A
data from memory
word address
data from memory
data from memory
DATA n
DATA n
no acknowledge
acknowledge
no acknowledge
1
X
from master
STOP condition
from slave
acknowledge
from master
from master
STOP condition
002aac901
© NXP B.V. 2009. All rights reserved.
A
A
002aab253
A
A
P
P
SE97
21 of 54