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参数资料
| 型号： | CDB5464U |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 41/46页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR CS5464 ADC |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | CS5464 |
| 主要属性： | 电能表 |
| 次要属性： | 图形用户接口，SPI? 和 USB 接口 |
| 已供物品： | 板，线缆，软件 |
| 产品目录页面： | 754 (CN2011-ZH PDF) |
| 相关产品： | CS5464-ISZR-ND - IC ENERGY METERING 1PHASE 28SSOP 598-1194-5-ND - IC ENERGY METERING 1PHASE 28SSOP 598-1193-5-ND - IC PWR/ENERGY METER 3CH 28-SSOP |
| 其它名称： | 598-1554 CDB-5464U |
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CS5464
10.E 2 PROM OPERATION
The CS5464 can accept commands from a serial
E 2 PROM connected to the serial interface instead of a
host microcontroller. A high level (logic 1) on the MODE
input indicates that an E 2 PROM is connected. This
makes the CS and SCLK pins become driven outputs.
After reset and after running the initialization program,
the CS5464 begins reading commands from the con-
nected E 2 PROM.
10.1 E 2 PROM Configuration
A typical connection between the CS5464 and a
E 2 PROM is shown in Figure 13 .
The CS5464 asserts CS (logic 0), clocks SCLK, and
sends Read commands to the E 2 PROM on SDO.
Command format is identical to microcontroller mode,
except the CS5464 will not attempt to write to the EE de-
vice. The command sequence stops when the STOP bit
in the Control register ( Ctrl ) is written by the command
sequence.
10.2 E 2 PROM Code
The EEPROM code should do the following:
1. Set any Configuration or Control register bits, such as
HPF enables and phase compensation settings.
2. Write any calibration data to gain and offset registers.
3. Set energy output pulse width, rate, and formats.
4. Execute a Continuous Conversion command.
5. Set the STOP bit in the Control register (last).
Below is an example E 2 PROM code set.
- 7E 00 00 01
Change to page 1.
- 60 00 01 E0
Write Modes Register, turn high-pass filters on.
- 42 7F C4 A9
Write value of 0x7FC4A9 to I1 GAIN register.
- 46 FF B2 53
Write value of 0xFFB253 to V1 GAIN register.
5K
VD
+
E1
E2
CS5464
SCLK
SDI
SDO
MODE CS
Pulse Output
Counter
5K
EEPROM
SCK
SO
SI
CS
- 50 7F C4 A9
Write value of 0x7FC4A9 to I2 GAIN register.
- 54 FF B2 53
Write value of 0xFFB253 to V2 GAIN register.
- 7E 00 00 00
Change to page 0.
- 74 00 00 04
Set LSD bit to 1 in the Mask register.
- E8
Start continuous conversions
Connector to Calibrator
Figure 13. Typical Interface of E 2 PROM to CS5464
Figure 13 also shows the external connections that
would be made to a calibration device, such as a note-
book computer, handheld calibrator, or tester during
- 78 00 01 00
Write STOP bit to the Control register ( Ctrl ) to
terminate E 2 PROM command sequence.
10.3 Which E 2 PROMs Can Be Used?
Several industry-standard serial E 2 PROMs can be used
with the CS5464. Some are listed below:
meter assembly, The calibrator or tester can be used to
control the CS5464 during calibration and program the
required values into the E 2 PROM.
?
?
?
Atmel AT25010, AT25020 or AT25040
National Semiconductor NM25C040M8 or NM25020M8
Xicor X25040SI
These serial E 2 PROMs expect a specific 8-bit com-
mand (00000011) in order to perform a memory read.
The CS5464 has been hardware programmed to trans-
mit this 8-bit command to the E 2 PROM after reset.
DS682F3
41
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CDB5464U-Z | 制造商:Cirrus Logic 功能描述:EVAL BD PB-FREE DEMO BOARD FOR CS5464 - Boxed Product (Development Kits) 制造商:Cirrus Logic 功能描述:Eval Board |
| CDB5466U | 功能描述:数据转换 IC 开发工具 Eval Bd F/Residental Pow-Meter Apps RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| CDB5466U-Z | 制造商:Cirrus Logic 功能描述:PB-FREEEVAL BOARD FOR CS5466 WITH USB - Bulk |
| CDB5467U | 功能描述:数据转换 IC 开发工具 Eval Bd 4-Ch Sngl-Phs Pow/Energy RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
| CDB5471 | 制造商:Cirrus Logic 功能描述:Tools Development kit Kit Con |
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