Adaptec 1737100 Programmer Manual - Page 151

Register Descriptions RxByteCnt Register Type: R/W Internal Registers Subgroup: MAC Registers Byte Address: 5040h- 5043h Table 7-103. RxByteCnt Register Reset Bit(s) rw Value Description/Function 31:16 r/w 0 Reserved: Always reads 0. 15:0 r/w 0 RxByteCnt: This is a multipurpose counter used internally to count the number of bytes at different times. It should only be written for test purposes, such as testing huge frame functionality. TxPauseTimer Register Type: R/W Internal Registers Subgroup: MAC Registers Byte Address: 5060h- 5063h Table 7-104. TxPauseTimer Register Reset Bit(s) rw Value Description/Function 31:16 r/w 0 Reserved: Always reads 0. 15:0 r/w 0 TxPauseTimer: This is the pause timer value used when transmitting a pause control frame. VLANType Register Type: R/W Internal Registers Subgroup: MAC Registers Byte Address: 5064h- 5067h Table 7-105. VLANType Register Reset Bit(s) rw Value Description/Function 31:16 r/w 15:0 r/w 0 Reserved: Always read as 0. 0 VLAN type: A frame is considered a VLAN frame if the 13th byte in the frame matchesVLANTYPE[15:8] and the 14th byte in the frame matchesVLANTYPE[7:0]. 7-79