Datasheet

90E32AS ENHANCED POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Register 65 April 2, 2013
CRCDigest
CRC Digest
CfgRegAccEn
Configure Register Access Enable
Address: 7AH
Type: Read/ Write
Default Value: 0000H
Bit Name Description
15:0 CRCDigest
This register returns the computed CRC remainder (Digest) value of the public configuration register upon read operation.
This register can be conditionally written as the portal to update the golden CRC that internally latched. Refer to register
CfgRegAccEn for the details.
Address: 7FH
Type: Read/ Write
Default Value: 0000H
Bit Name Description
15:0 CfgRegAccEn
Enable register access configuration.
‘0x55AA’ : Allow register configuration access (configuration operation).
‘0xAA55’: Allow write to the "Golden CRC" register at the address of CRCDigest, on top of normal operation/CRC checking
mode. This is just for validation of this feature.
other: Normal operation. The device will start to compute a CRC digest/checksum and latch it the golden CRC register, then
continuously running to check with it.