31.2.23.9 Source Data Address Register

Table 31-12. Register Bit Attribute Legend
SymbolDescriptionSymbolDescriptionSymbolDescription
RReadable bitHCCleared by Hardware(Grey cell)Unimplemented
WWritable bitHSSet by HardwareXBit is unknown at Reset
KWrite to clearSSoftware settable bit
Name: SRCADDR
Offset: 0x0024
Reset: 0x00000000
Property: PAC Write-Protection

Bit 3130292827262524 
 SRCADDR[31:24] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 
Bit 2322212019181716 
 SRCADDR[23:16] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 
Bit 15141312111098 
 SRCADDR[15:8] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 
Bit 76543210 
 SRCADDR[7:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 

Bits 31:0 – SRCADDR[31:0] Source Data (Word) Address

This is the system physical address of the data to be programmed into the flash when CTRLA.NVMOP is set to Row Write.

Note:
  1. This field can only be modified when STATUS.BUSY=0.
  2. For 32-bit aligned memory the bottom two bits, SRCADDR[1:0], are ignored.

    For 64-bit (double word) writes the bottom four bits, SRCADDR[3:0], are ignored.