- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373349 > S42WD42SP (Electronic Theatre Controls, Inc.) Dual Voltage Supervisory Circuit With Watchdog Timer PDF資料下載
參數(shù)資料
| 型號(hào)： | S42WD42SP |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Dual Voltage Supervisory Circuit With Watchdog Timer |
| 中文描述： | 雙電壓監(jiān)控電路，帶有看門狗定時(shí)器 |
| 文件頁(yè)數(shù)： | 12/16頁(yè) |
| 文件大?。?/td> | 102K |
| 代理商： | S42WD42SP |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)當(dāng)前第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
12
S4242/S42WD42/S4261/S42WD61
2025 6.0 4/17/00
FIGURE 14. SEQUENTIAL READ OPERATION (starting with a Random Address READ)
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
S42xxx. The S42xxx continues to output data for each
ACKnowledge received. The master terminates the se-
quential 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 14 for the
address, acknowledge and data transfer sequence.
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
42xxx
SDA Output Active
* S4261/S42WD61 only
S
T
A
R
T
Word Address
S
T
O
P
A
C
K
Acknowledges from 42xxx
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
2025 ILL14.1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S42WD42SS | Dual Voltage Supervisory Circuit With Watchdog Timer |
| S42WD61 | SWITCH RT ANGLE SEALED 10 SEC |
| S42WD61P2.7P | Dual Voltage Supervisory Circuit With Watchdog Timer |
| S42WD61P2.7S | Dual Voltage Supervisory Circuit With Watchdog Timer |
| S42WD61PAP | Dual Voltage Supervisory Circuit With Watchdog Timer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S42WD42SS | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Dual Voltage Supervisory Circuit With Watchdog Timer |
| S42WD61 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual Voltage Supervisory Circuit With Watchdog Timer |
| S42WD61P2.7P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual Voltage Supervisory Circuit With Watchdog Timer |
| S42WD61P2.7S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual Voltage Supervisory Circuit With Watchdog Timer |
| S42WD61PAP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Dual Voltage Supervisory Circuit With Watchdog Timer |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。