37.8.10 Initialization Vector Value Register

Name: INTVECTVn
Offset: 0x3C + n*0x04 [n=0..3]
Reset: 0x00000000
Property: PAC Write-Protection

Bit 3130292827262524 
 INTVECTV[31:24] 
Access WWWWWWWW 
Reset 00000000 
Bit 2322212019181716 
 INTVECTV[23:16] 
Access WWWWWWWW 
Reset 00000000 
Bit 15141312111098 
 INTVECTV[15:8] 
Access WWWWWWWW 
Reset 00000000 
Bit 76543210 
 INTVECTV[7:0] 
Access WWWWWWWW 
Reset 00000000 

Bits 31:0 – INTVECTV[31:0] Initialization Vector Value

The four 32-bit Initialization Vector Value registers INTVECTVx set the 128-bit Initialization Vector Value data block that is used by some modes of operation as an additional initial input. INTVECTV0.INTVECTV corresponds to the first word of the Initialization Vector Value, INTVECTV3.INTVECTV to the last one. These registers are write-only to prevent the Initialization Vector Value from being read by another application. For CBC, OFB and CFB modes, the Initialization Vector Value corresponds to the initialization vector value. or CTR mode, it corresponds to the counter value.