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ENERGY METERING - AUSTRIAMICROSYSTEMS |
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- Dedicated
single-phase energymeter platform. |
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- Dedicated
energy measurement front-end |
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- 3 high-
resolution Sigma-Delta modulators |
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- on-chip
voltage reference |
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- A/D conversion
of the voltage and current inputs |
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- Hardwired
digital filters including high-pass filters |
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- A programmable
digital signal processing block (DSP). |
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- 8-bit 8051
compatible microcontroller (MCU). |
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- Programmable
watchdog timer (WDT) and external reset pin. |
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- Trim able real
time clock (RTC) a battery back-up facility. |
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- Programmable
liquid crystal display driver. |
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AS8218 - 80 LCD
segments, AS8228 -96 LCD segments |
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- Multi -purpose
I/Os (MPIO) programmable for data direction. |
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AS8218 - 9 MPIOs,
AS8228 - 12 MPIOs |
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- SPI interface
with the external 32k Byte EEPROM memory. |
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- A USB
interface (UART1) for system control |
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- RS232
interface (UART2) for debugging purposes |
