CS5490-ISZ datasheet(38/56 Pages) APEX

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CS5490

DS982F2

6.6.12 Interrupt Status (Status0) – Page 0, Address 23

Default = 0x 00 0000

The Status0 register indicates a variety of conditions within the chip.

Writing a one to a Status0 register bit will clear that bit. Writing a zero to any bit has no effect.

DRDY

Data Ready. During conversion, this bit indicates that low-rate results have been updated.

It indicates completion of other host instruction and the reset sequence.

CRDY

Conversion Ready. Indicates that sample rate (output word rate) results have been updat-

ed.

WOF

Watchdog timer overflow.

[20:19]

Reserved.

MIPS

MIPS overflow.

Sets when the calculation engine has not completed processing a sample before the next

one arrives.

[17]

Reserved.

VSWELL

Voltage channel swell event detected.

[15]

Reserved.

POR

Power out of range. Sets when the measured power would cause the P register to overflow.

[13]

Reserved.

IOR

Current out of range. Set when the measured current would cause the I register to overflow.

[11]

Reserved.

VOR

Voltage out of range. Set when the measured voltage would cause the V register to over-

flow.

[7]

Reserved.

IOC

I Overcurrent.

[9]

Reserved.

VSAG

Voltage channel sag event detected.

TUP

Temperature updated. Indicates when the Temperature register (T) has been updated.

FUP

Frequency updated. Indicates the Epsilon register has been updated.

Invalid command has been received.

RX_CSUM_ERR Received data checksum error. Sets to one automatically if checksum error is detected on

serial port received data.

RX_TO

SDI/RX time out. Sets to one automatically when SDI/RX time out occurs.

DRDY

CRDY

WOF

MIPS

VSWELL

POR

IOR

VOR

IOC

654

VSAG

TUP

FUP

RX_CSUM_ERR

RX_TO

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