11.5.25 Transmit Match Location Register

Name: TXMLOC
Address: 0x0045

Bit 15141312111098 
  
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00000000 
Bit 76543210 
 TXLOCATION[5:0] 
Access R/WR/WR/WR/WR/WR/WR/WR/W 
Reset 00011110 

Bits 5:0 – TXLOCATION[5:0] Transmit Match Location

Location in nibbles within the Ethernet packet relative to, but not including, the Start-of-Frame Delimiter (SFD) at which the pattern matcher will activate. The six previous transmitted nibbles relative to (but not including) the transmit match location nibble will be compared. Valid range is from 0x00 to 0x3D
Note: Triggering of transmit packets matching at the Start-of-Frame Delimiter (SFD) requires that the Transmit Match Location be configured to 0x00. Additionally, all bits within the Transmit Match Pattern field must be disabled from the compare by writing the Transmit Match Mask registers to 0xFFFFFF.