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參數(shù)資料
| 型號： | SMS8198SA |
| 廠商： | Summit Microelectronics, Inc. |
| 英文描述： | Philips TriMedia⑩ Processor Companion Supervisor With a 16K-bit 2-wire Serial Memory |
| 中文描述： | ⑩飛利浦代TriMedia處理器伴侶監(jiān)憑借16K的位2線串行存儲器 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大小： | 84K |
| 代理商： | SMS8198SA |
10
SMS8198
2036 5.0 4/18/00
Sequential READ
Sequential READs can be initiated as either a current
address READ or random access READ. The first word is
transmitted as with the other byte read modes (current
address byte READ or random address byte READ);
however, the master now responds with an ACKnowledge,
indicating that it requires additional data from the
SMS8198. The SMS8198 continues to output data for
each ACKnowledge received. The master terminates the
sequential READ operation by not responding with an
ACKnowledge, and issues a STOP conditions.
During a sequential read operation, the internal address
counter is automatically incremented with each acknowl-
edge signal. For read operations, all address bits are
incremented, allowing the entire array to be read using a
single read command. After a count of the last memory
address, the address counter will
‘
roll-over
’
and the
memory will continue to output data. See Figure 10 for the
address, acknowledge and data transfer sequence.
Figure 10. Sequential READ Operation (starting with a Random Address READ)
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
A
7
A
6
A
5
A
4
A
3
A
2
A
1
A
0
Shading Denotes
SMS8198
SDA Output Active
S
T
A
R
T
Word Address
S
T
O
P
A
C
K
Acknowledges from SMS8198
Slave Address
Slave Address
Device
Type
Address
Read/Write
0= Write
Device
Type
Address
A10,A9,A8
A10,A9,A80
SDA Bus
Activity
S
T
A
R
T
Read/Write
1= Read
A
9
R
W
A
10
Acknowledge from
Master Receiver
A
C
K
A
C
K
A
C
K
Master sends Read
request to Slave
Master Writes Word
Address to Slave
Master Requests
Data from Slave
Slave sends
Data to Master
Slave Transmitter
to
Master Receiver
Slave Transmitter
to
Master Receiver
Master Transmitter
to
Slave Receiver
1 0 1 0
1 0 1 0
1
0
Slave sends
Data to Master
A
10
A
9
R
W
A
8
A
8
Lack of ACK (low)
determines last
data byte to be read
1
Lack of
Acknowledge from
Master Receiver
Slave Transmitter
to
Master Receiver
Master Transmitter
to
Slave Receiver
Master Transmitter
to
Slave Receiver
Master Transmitter
to
Slave Receiver
Slave Transmitter
to
Master Receiver
Slave Transmitter
to
Master Receiver
Last Data Byte
First Data Byte
2036 ILL12.0
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| SMS9CH-2Z17 | 制造商:SOURIAU 功能描述:Conn Qikmate HDR 9 POS 5.08mm Solder ST Thru-Hole |
| SMS9CSB1 | 功能描述:集管和線殼 Protection Shroud 9P Pnl Mnt Pin Recpt RoHS:否 產(chǎn)品種類:1.0MM Rectangular Connectors 產(chǎn)品類型:Headers - Pin Strip 系列:DF50 觸點(diǎn)類型:Pin (Male) 節(jié)距:1 mm 位置/觸點(diǎn)數(shù)量:16 排數(shù):1 安裝風(fēng)格:SMD/SMT 安裝角:Right 端接類型:Solder 外殼材料:Liquid Crystal Polymer (LCP) 觸點(diǎn)材料:Brass 觸點(diǎn)電鍍:Gold 制造商:Hirose Connector |
| SMS9GE3 | 制造商:SOURIAU 功能描述:SOCKET PCB 9WAY 制造商:Souriau 功能描述:Conn Qikmate F 9 POS 5.08mm Solder ST Thru-Hole |
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