38.8.2 Control B
Name: | CTRLB |
Offset: | 0x04 |
Reset: | 0x00 |
Property: | PAC Write-Protection |
Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
GFMUL | EOM | NEWMSG | START | ||||||
Access | R/W | R/W | R/W | R/W | |||||
Reset | 0 | 0 | 0 | 0 |
Bit 3 – GFMUL GF Multiplication
Value | Description |
---|---|
0 | No action |
1 | Setting this bit calculates GF multiplication with data buffer content and hashkey register content. |
Bit 2 – EOM End of Message
Value | Description |
---|---|
0 | No action |
1 | Setting this bit generates final GHASH value for the message. |
Bit 1 – NEWMSG New Message
Value | Description |
---|---|
0 | No action |
1 | Setting this bit indicates start of new message to the module. |
Bit 0 – START Start Encryption/Decryption
Value | Description |
---|---|
0 | No action |
1 | Start encryption / decryption in manual mode. |