- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄375311 > AMD1027 (Analog Devices, Inc.) dBCOOL Remote Thermal Controller and Voltage Monitor PDF資料下載
參數(shù)資料
| 型號： | AMD1027 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | dBCOOL Remote Thermal Controller and Voltage Monitor |
| 中文描述： | dBCOOL遠程熱控制器和電壓監(jiān)視器 |
| 文件頁數(shù)： | 10/56頁 |
| 文件大小： | 1072K |
| 代理商： | AMD1027 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁當前第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁
REV. A
–10–
ADM1027
Notes
1. It is possible to
read
a data byte from a data register without
first writing to the address pointer register if the address
pointer register is already at the correct value. However, it is
not possible to
write
data to a register without writing to the
address pointer register, because the first data byte of a write
is always written to the address pointer register.
2. In Figures 6 to 8, the serial bus address is shown as the default
value 01011(A1)(A0), where A1 and A0 are set by the address
select mode function previously defined.
3. In addition to supporting the send byte and receive byte
protocols, the ADM1027 also supports the read byte protocol
(see System Management Bus specifications Rev. 2.0 for
more information).
4. If it is required to perform several read or write operations in
succession, the master can send a repeat start condition instead
of a stop condition to begin a new operation.
ADM1027 WRITE OPERATIONS
The SMBus specification defines several protocols for different
types of read and write operations. The ones used in the
ADM1027 are discussed below. The following abbreviations are
used in the diagrams:
S – START
P – STOP
R – READ
W – WRITE
A – ACKNOWLEDGE
A
– NO ACKNOWLEDGE
The ADM1027 uses the following SMBus write protocols:
Send Byte
In this operation, the master device sends a single command
byte to a slave device, as follows:
1. The master device asserts a start condition on SDA.
2. The master sends the 7-bit slave address followed by the
write bit (low).
3. The addressed slave device asserts ACK on SDA.
4. The master sends a command code.
5. The slave asserts ACK on SDA.
6. The master asserts a stop condition on SDA and the
transaction ends.
For the ADM1027, the send byte protocol is used to write a
register address to RAM for a subsequent single byte read from
the same address. This is illustrated in Figure 9.
S
ASLAVE
A P
1
2
3
4
5
6
REGISTER
ADDRESS
Figure 9. Setting a Register Address for Subsequent Read
If it is required to read data from the register immediately after
setting up the address, the master can assert a repeat start con-
dition immediately after the final ACK and carry out a single
byte read without asserting an intermediate stop condition.
Write Byte
In this operation, the master device sends a command byte and
one data byte to the slave device, as follows:
1. The master device asserts a start condition on SDA.
2. The master sends the 7-bit slave address followed by the
write bit (low).
3. The addressed slave device asserts ACK on SDA.
4. The master sends a command code.
5. The slave asserts ACK on SDA.
6. The master sends a data byte.
7. The slave asserts ACK on SDA.
8. The master asserts a stop condition on SDA to end the
transaction.
This is illustrated in Figure 10.
S
ASLAVE
1
2
3
4
5
6
A DATA A P
7
8
REGISTER
ADDRESS
Figure 10. Single Byte Write to a Register
ADM1027 READ OPERATIONS
The ADM1027 uses the following SMBus read protocols:
Receive Byte
This is useful when repeatedly reading a single register. The
register address needs to have been set up previously. In this
operation, the master device receives a single byte from a slave
device, as follows:
1. The master device asserts a start condition on SDA.
2. The master sends the 7-bit slave address followed by the
read bit (high).
3. The addressed slave device asserts ACK on SDA.
4. The master receives a data byte.
5. The master asserts NO ACK on SDA.
6. The master asserts a stop condition on SDA and the trans-
action ends.
In the ADM1027, the receive byte protocol is used to read a
single byte of data from a register whose address has previously
been set by a send byte or write byte operation.
S
SLAVE
ADDRESS
R
A
DATA
A
P
1
2
3
4
5
6
Figure 11. Single Byte Read from a Register
Alert Response Address
Alert Response Address (ARA) is a feature of SMBus devices,
which allows an interrupting device to identify itself to the host
when multiple devices exist on the same bus.
The
SMBALERT
output can be used as an interrupt output or
can be used as an
SMBALERT
. One or more outputs can be
connected to a common
SMBALERT
line connected to the
master. If a device’s
SMBALERT
line goes low, the following
procedure occurs:
1.
SMBALERT
is pulled low.
2. Master initiates a read operation and sends the alert response
address (ARA = 0001 100). This is a general call address that
must not be used as a specific device address.
3. The device whose
SMBALERT
output is low responds to
the alert response address, and the master reads its device
address. The address of the device is now known and it can
be interrogated in the usual way.
4. If more than one device’s
SMBALERT
output is low, the one
with the lowest device address will have priority, in accordance
with normal SMBus arbitration.
相關PDF資料 |
PDF描述 |
|---|---|
| AME05 | 5 watt encapsulated ac-dc converter |
| AME05-12D | 5 watt encapsulated ac-dc converter |
| AME05-12S | 5 watt encapsulated ac-dc converter |
| AME05-15D | 5 watt encapsulated ac-dc converter |
| AME05-15S | 5 watt encapsulated ac-dc converter |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AMD-12V030W2AA | 功能描述:30W 12V 2.5A 2PIN AC INNER 2.5MM RoHS:是 類別:電源 - 外部/內部（非板載） >> AC DC 桌面、壁式變壓器 系列:AMD 標準包裝:40 系列:- 局部使用:適用于北美地區(qū) 形態(tài):壁式（2 管腳） 輸入電壓:120VAC 電壓 - 每連接器輸出:5V 電流 - 輸出（最大）:600mA 功率（瓦特）:3W 電源類型:線性（非穩(wěn)壓） 電極標記:負極中心 纜線插頭:2.1mm 內徑 x 5.5mm 外徑 x 9.5mm 母形 應用:商用 特點:- 效率:- 工作溫度:- AC 輸入連接器:- 線纜長度:- 線路調節(jié):- 負載調整:- 重量:- 相關產(chǎn)品:CP-2225-ND - CORD YE-2013 GATOR CLIP SPT 1' 其它名稱:Q1710420 |
| AMD-12V030W2BA | 功能描述:30W 12V 2.5A 2PIN AC INNER 2.1MM RoHS:是 類別:電源 - 外部/內部（非板載） >> AC DC 桌面、壁式變壓器 系列:AMD 標準包裝:40 系列:- 局部使用:適用于北美地區(qū) 形態(tài):壁式（2 管腳） 輸入電壓:120VAC 電壓 - 每連接器輸出:5V 電流 - 輸出（最大）:600mA 功率（瓦特）:3W 電源類型:線性（非穩(wěn)壓） 電極標記:負極中心 纜線插頭:2.1mm 內徑 x 5.5mm 外徑 x 9.5mm 母形 應用:商用 特點:- 效率:- 工作溫度:- AC 輸入連接器:- 線纜長度:- 線路調節(jié):- 負載調整:- 重量:- 相關產(chǎn)品:CP-2225-ND - CORD YE-2013 GATOR CLIP SPT 1' 其它名稱:Q1710420 |
| AMD-12V030W3AA | 功能描述:30W 12V 2.5A 3PIN AC INNER 2.5MM RoHS:是 類別:電源 - 外部/內部（非板載） >> AC DC 桌面、壁式變壓器 系列:AMD 標準包裝:40 系列:- 局部使用:適用于北美地區(qū) 形態(tài):壁式（2 管腳） 輸入電壓:120VAC 電壓 - 每連接器輸出:5V 電流 - 輸出（最大）:600mA 功率（瓦特）:3W 電源類型:線性（非穩(wěn)壓） 電極標記:負極中心 纜線插頭:2.1mm 內徑 x 5.5mm 外徑 x 9.5mm 母形 應用:商用 特點:- 效率:- 工作溫度:- AC 輸入連接器:- 線纜長度:- 線路調節(jié):- 負載調整:- 重量:- 相關產(chǎn)品:CP-2225-ND - CORD YE-2013 GATOR CLIP SPT 1' 其它名稱:Q1710420 |
| AMD-12V030W3BA | 功能描述:30W 12V 2.5A 3PIN AC INNER 2.1MM RoHS:是 類別:電源 - 外部/內部（非板載） >> AC DC 桌面、壁式變壓器 系列:AMD 標準包裝:40 系列:- 局部使用:適用于北美地區(qū) 形態(tài):壁式（2 管腳） 輸入電壓:120VAC 電壓 - 每連接器輸出:5V 電流 - 輸出（最大）:600mA 功率（瓦特）:3W 電源類型:線性（非穩(wěn)壓） 電極標記:負極中心 纜線插頭:2.1mm 內徑 x 5.5mm 外徑 x 9.5mm 母形 應用:商用 特點:- 效率:- 工作溫度:- AC 輸入連接器:- 線纜長度:- 線路調節(jié):- 負載調整:- 重量:- 相關產(chǎn)品:CP-2225-ND - CORD YE-2013 GATOR CLIP SPT 1' 其它名稱:Q1710420 |
| AMD150C-N02C-T | 制造商:SMC Corporation of America 功能描述:MICRO MIST SEPARATOR, 1/4NPT, 2.2KW, NC DRAIN, SERVICE INDICATOR |
發(fā)布緊急采購，3分鐘左右您將得到回復。