- 您现在的位置：买卖IC网 > PDF目录373995 > ADM1026 (Analog Devices, Inc.) Complete Thermal and System Management Controller PDF资料下载
参数资料
| 型号： | ADM1026 |
| 厂商： | Analog Devices, Inc. |
| 英文描述： | Complete Thermal and System Management Controller |
| 中文描述： | 完整的热和系统管理控制器 |
| 文件页数： | 15/56页 |
| 文件大小： | 634K |
| 代理商： | ADM1026 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页当前第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页
ADM1026
Because the EEPROM consists of 128 pages of 64 bytes, the
EEPROM page address consists of the EEPROM address high
byte (from 80h to 9Fh) and the two MSBs of the low byte. The
lower six bits of the EEPROM address (low byte only) specify
addresses within a page and are ignored during an erase
operation.
Rev. A | Page 15 of 56
S
ASLAVE
EEPROM
ADDRESS
HIGH BYTE
(80h TO 9Fh)
1
2
3
4
5
6
A
AARDATA
7
8
EEPROM
ADDRESS
LOW BYTE
(00h TO FFh)
A Y
9 10
0
Figure 22. EEPROM Page Erasure
Page erasure takes approximately 20 ms. If the EEPROM is
accessed before erasure is complete, the ADM1026 responds
with No Acknowledge.
Last, this protocol is used to write a single byte of data to
EEPROM. In this case, the command byte is the high byte of the
EEPROM address from 80h to 9Fh. The first data byte is the low
byte of the EEPROM address, and the second data byte is the
actual data. Bit 1 of EEPROM Register 3 must be set. This is
illustrated in Figure 23.
S
ASLAVE
EEPROM
ADDRESS
HIGH BYTE
(80h TO 9Fh)
1
2
3
4
5
6
A
A
DATA
7
8
EEPROM
ADDRESS
LOW BYTE
(00h TO FFh)
A
Y
9 10
0
Figure 23. Single-Byte Write to EEPROM
Block Write
In this operation, the master device writes a block of data to a
slave device. The start address for a block write must have been
set previously. In the case of the ADM1026, this is done by a
Send Byte operation to set a RAM address or by a write
byte/word operation to set an EEPROM address.
1.
The master device asserts a start condition on the SDA.
2.
The master sends the 7-bit slave address followed by the
write bit (low).
3.
The addressed slave device asserts an ACK on the SDA.
4.
The master sends a command code that tells the slave
device to expect a block write. The ADM1026 command
code for a block write is A0h (10100000).
5.
The slave asserts an ACK on the SDA.
6.
The master sends a data byte (20h) that tells the slave
device that 32 data bytes are being sent to it. The master
should always send 32 data bytes to the ADM1026.
7.
The slave asserts an ACK on the SDA.
8.
The master sends 32 data bytes.
9.
10.
The master sends a packet error checking (PEC ) byte.
11.
The ADM1026 checks the PEC byte and issues an ACK if
correct. If incorrect (NACK), the master resends the data
bytes.
12.
The master asserts a stop condition on the SDA to end the
transaction.
The slave asserts an ACK on the SDA after each data byte.
S
ASLAVE
COMMAND
A0h BLOCK
WRITE
A
A DATA 1
BYTE
COUNT
A
A
A
P
DATA 2 A
DATA
32
PEC
0
Figure 24. Block Write to EEPROM or RAM
When performing a block write to EEPROM, Bit 1 of EEPROM
Register 3 must be set.
Unlike some EEPROM devices that limit block writes to within
a page boundary, there is no limitation on the start address
when performing a block write to EEPROM, except:
There must be at least 32 locations from the start address
to the highest EEPROM address (9FFF) to avoid writing to
invalid addresses.
If the addresses cross a page boundary, both pages must be
erased before programming.
ADM1026 Read Operations
The ADM1026 uses the SMBus read protocols described here.
Receive Byte
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 the SDA.
2.
The master sends the 7-bit slave address followed by the
read bit (high).
3.
The addressed slave device asserts an ACK on the SDA.
4.
The master receives a data byte.
5.
The master asserts a NO ACK on the SDA.
6.
The master asserts a stop condition on the SDA to end the
transaction.
In the ADM1026, the receive byte protocol is used to read a
single byte of data from a RAM or EEPROM location whose
address has previously been set by a send byte or write
byte/word operation. Figure 25 shows this. When reading from
EEPROM, Bit 0 of EEPROM Register 3 must be set.
S
SLAVE
ADDRESS
R
A
DATA
A
P
1
2
3
4
5
6
0
Figure 25. Single-Byte Read from EEPROM or RAM
相关PDF资料 |
PDF描述 |
|---|---|
| ADM1026JST-REEL | Complete Thermal and System Management Controller |
| ADM1026JSTZ-REEL | Complete Thermal and System Management Controller |
| ADM1026JST | Circular Connector; No. of Contacts:28; Series:LJT06R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:19; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:19-28 |
| ADM1030ARQ | Intelligent Temperature Monitor and PWM Fan Controller |
| ADM1030 | Circular Connector; No. of Contacts:66; Series:LJT06R; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:19; Circular Contact Gender:Socket; Circular Shell Style:Straight Plug; Insert Arrangement:19-35 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM1026EBZEVB | 功能描述:BOARD EVAL FOR ADM1026 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像，彩色（RGB） 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| ADM1026JST | 功能描述:IC CNTRL SYS REF/EEPROM 48LQFP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
| ADM1026JST-REEL | 功能描述:IC CNTRL SYS REF/EEPROM 48LQFP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
| ADM1026JST-REEL7 | 功能描述:IC CNTRL SYS REF/EEPROM 48LQFP RoHS:否 类别:集成电路 (IC) >> PMIC - 热管理 系列:- 标准包装:1 系列:- 功能:温度监控系统（传感器） 传感器类型:内部和外部 感应温度:-40°C ~ 125°C，外部传感器 精确度:±2.5°C 本地（最大值），±5°C 远程（最大值） 拓扑:ADC，比较器，寄存器库 输出类型:2 线 SMBus? 输出警报:无 输出风扇:无 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:SOT-23-8 供应商设备封装:SOT-23-8 包装:Digi-Reel® 其它名称:296-22675-6 |
| ADM1026JSTZ | 功能描述:PMIC 解决方案 HI INT SYS MONITR IC RoHS:否 制造商:Texas Instruments 安装风格:SMD/SMT 封装 / 箱体:QFN-24 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。