CRCCON0

CRCCON0

CRC Control Register 0
  0x068 8    

CRCCON0

Bit  7 6 5 4 3 2 1 0  
  EN GO BUSY ACCM SETUP[1:0] SHIFTM FULL  
Access  R/W R/W R R/W R/W   R/W R  
Reset  0 0 0 0 0   0 0  

Bit 7 – EN: CRC Enable

CRC Enable

ValueDescription
1 CRC module is released from Reset
0 CRC is disabled and consumes no operating current

Bit 6 – GO: CRC Start

CRC Start

ValueDescription
1 Start CRC serial shifter
0 CRC serial shifter turned off

Bit 5 – BUSY: CRC Busy

CRC Busy

ValueDescription
1 Shifting in progress or pending
0 All valid bits in shifter have been shifted into accumulator and EMPTY = 1

Bit 4 – ACCM: Accumulator Mode

Accumulator Mode

ValueDescription
1 Data is augmented with zeros
0 Data is not augmented with zeros

Bits 4:3 – SETUP[1:0]

Register Overlay Setup
ValueDescription
11 CRC Register Overlay Selection; Read / Write access to CRCOUT
10 CRC Register Overlay Selection; Read / Write access to CRCXOR
01 CRC Register Overlay Selection; Read / Write access to CRCSHIFT
00 CRC Register Overlay Selection; Read / Write access to CRCOUT

Bit 1 – SHIFTM: Shift Mode

Shift Mode

ValueDescription
1 Shift right (LSb first)
0 Shift left (MSb first)

Bit 0 – FULL: Data Path Full Indicator

Data Path Full Indicator

ValueDescription
1 CRCDATAT/U/H/L registers are full
0 CRCDATAT/U/H/L registers have shifted their data into the shifter