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參數(shù)資料
| 型號： | SMS8198S |
| 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)： | 9/14頁 |
| 文件大?。?/td> | 84K |
| 代理商： | SMS8198S |
9
2036 5.0 4/18/00
SMS8198
Figure 9. Random Address Byte Read Mode
Random Address Byte Read
Random address read operations allow the master to
access any memory location in a random fashion. This
operation involves a two-step process. First, the master
issues a write command which includes the start condi-
tion and the slave address field (with the R/W bit set to
WRITE) followed by the address of the word it is to read.
This procedure sets the internal address counter of the
SMS8198 to the desired address.
After the word address acknowledge is received by the
master, the master immediately reissues a start condition
followed by another slave address field with the R/W bit
set to READ. The SMS8198 will respond with an acknowl-
edge and then transmit the 8-data bits stored at the
addressed location. At this point, the master does not
acknowledge the transmission but does generate the stop
condition. The SMS8198 discontinues data transmission
and reverts to its standby power mode. See Figure 9 for
the address, acknowledge and data transfer sequence.
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
S
T
A
R
T
Word Address
S
T
O
P
A
C
K
Slave Address
Slave Address
Device
Type
Address
Read/Write
0= Write
Device
Type
Address
A10,A9,A8
A10,A9,A8
SDA Bus
Activity
S
T
A
R
T
Read/Write
1= Read
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
1 0 1 0
1 0 1 0
1
0
A
10
A
9
R
W
A
8
A
9
R
W
A
10
A
8
Lack of ACK (low)
from Master
determines last
data byte to be read
1
Slave Transmitter
to
Master Receiver
Slave Transmitter
to
Master Receiver
Shading Denotes
SMS8198
SDA Output Active
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
Data Byte
2036 ILL11.0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SMS8198S2.7 | Philips TriMedia⑩ Processor Companion Supervisor With a 16K-bit 2-wire Serial Memory |
| SMS8198SA | Philips TriMedia⑩ Processor Companion Supervisor With a 16K-bit 2-wire Serial Memory |
| SMS8198SB | Philips TriMedia⑩ Processor Companion Supervisor With a 16K-bit 2-wire Serial Memory |
| SMSA | DC/DC CONVERTERS 28 VOLT INPUT |
| SMTR | DC/DC CONVERTERS 28 VOLT INPUT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SMS8198S2.7 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Philips TriMedia⑩ Processor Companion Supervisor With a 16K-bit 2-wire Serial Memory |
| SMS8198SA | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Philips TriMedia⑩ Processor Companion Supervisor With a 16K-bit 2-wire Serial Memory |
| SMS8198SB | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Philips TriMedia⑩ Processor Companion Supervisor With a 16K-bit 2-wire Serial Memory |
| SMS840 | 制造商:SECOS 制造商全稱:SeCoS Halbleitertechnologie GmbH 功能描述:0.13A , 50V , RDS(ON) 10 P-Channel Enhancement MOSFET |
| SMS9CH-2Z17 | 制造商:SOURIAU 功能描述:Conn Qikmate HDR 9 POS 5.08mm Solder ST Thru-Hole |
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