参数资料
| 型号： | EVAL-ADE7953EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 51/72页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR ADE7953 |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 已用 IC / 零件： | ADE7953 |
| 主要属性： | 3 通道 |
| 次要属性： | USB 接口 |
| 已供物品： | 2 板，CD |
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页当前第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页
Data Sheet
COMMUNICATING WITH THE ADE7953
All ADE7953 features can be accessed via a group of on-chip
registers. For a detailed list of all the registers, see the ADE7953
Registers section. Three different communication interfaces can
be used to access the on-chip registers.
ADE7953
Therefore, although Pin 25 (SCLK) and Pin 28 (CS) are not
required if communicating via I 2 C or UART, these pins should
be configured in hardware as shown in Table 9 to ensure the
functionality of the autodetection system.
?
?
?
4-pin SPI interface
2-pin bidirectional I 2 C interface
2-pin UART interface
LOCKING THE COMMUNICATION INTERFACE
After the selected communication interface is established, the
interface should be locked to prevent the communication
All three communication options use the same group of pins
and, therefore, only one method of communication should be
used in each design.
COMMUNICATION AUTODETECTION
The ADE7953 contains a detection system that automatically
detects which of the three communication interfaces is being
used. This feature allows communication to be quickly estab-
lished with minimal initialization. Autodetection works by
monitoring the status of the four communication pins and
automatically selecting the communication interface that
method from inadvertently changing. The ADE7953 can be
configured to lock automatically after the first successful
communication.
The automatic lock feature is disabled by default and is enabled
by clearing the COMM_LOCK bit (Bit 15) in the CONFIG
register (Address 0x102). To successfully establish and lock the
communication interface, a write should be issued shortly after
power-up to the CONFIG register, clearing the COMM_LOCK
bit and thus locking the communication interface. When the
communication interface is locked to a specific method (that is,
SPI, I 2 C, or UART), the communication method cannot be
?
?
The CS pin (Pin 28) is used to determine whether the
communication method is SPI. The pin must be low
during the SPI communication for this interface method.
The CS pin is active low and will automatically lock onto
SPI communication as a result.
The SCLK pin (Pin 25) is used to determine whether the
Note that if using the SPI communication interface to lock
the communication mode, the CS pin must be low for a
minimum of 1.2 μs after the last SCLK. This delay is required
only when writing to the COMM_LOCK bit (see the SPI
communication method is I 2 C or UART. If this pin is held
high, the communication interface is set to I 2 C; if it is held
low, the communication interface is set to UART.
Table 9. Communication Autodetection
Communication Interface
SPI
I 2 C
UART
Pin 28 (CS)
0
1
1
Pin 25 (SCLK)
Don’t care
1
0
Pin 27 (MOSI/SCL/Rx)
MOSI
SCL
Rx
Pin 26 (MISO/SDA/Tx)
MISO
SDA
Tx
Rev. B | Page 51 of 72
相关PDF资料 |
PDF描述 |
|---|---|
| EVAL-ADF4002EBZ1 | BOARD EVAL FOR ADF4002 |
| EVAL-ADG788EBZ | BOARD EVALUATION FOR ADG788 |
| EVAL-ADM1021AEB | BOARD EVAL FOR ADM1021 |
| EVAL-ADM1023EB | BOARD EVAL FOR ADM1023 |
| EVAL-ADM1031EB | BOARD EVAL FOR ADM1031 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EVAL-ADF4001EBZ2 | 制造商:Analog Devices 功能描述:Evaluation Board For Pll Frequency Synthesizer 制造商:Analog Devices 功能描述:ADF4001 PLL SYNTHESIZER EVAL BOARD |
| EVAL-ADF4002EB1 | 制造商:Analog Devices 功能描述:EVAL BOARD - Bulk |
| EVAL-ADF4002EBZ1 | 功能描述:BOARD EVAL FOR ADF4002 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 主要目的:电源管理，电池充电器 嵌入式:否 已用 IC / 零件:MAX8903A 主要属性:1 芯锂离子电池 次要属性:状态 LED 已供物品:板 |
| EVAL-ADF4007EBZ1 | 功能描述:BOARD EVALUATION FOR ADF4007EB1 RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:PSoC® 主要目的:电源管理，热管理 嵌入式:- 已用 IC / 零件:- 主要属性:- 次要属性:- 已供物品:板，CD，电源 |
| EVAL-ADF4106EB1 | 制造商:Analog Devices 功能描述:PLL, Frequency Synthesizer |
发布紧急采购，3分钟左右您将得到回复。