Adaptec AIC-6915 Informacje Techniczne Pobierz pdf (Strona 149)

7-77

ReTxCnt Register

Type: R/W

Internal Registers Su/jointfilesconvert/419897/bgroup: MAC Registers

Byte Address: 5020h- 5023h

RandomNumGen Register

Type: R/W

Internal Registers Su/jointfilesconvert/419897/bgroup: MAC Registers

Byte Address: 5024h - 5027h

Table 7-99. ReTxCnt Register

Bit(s) rw

Reset

Value Description/Function

31:4 r/w 0

Reserved:

Always read as 0.

3:0 r/w 0

ReTxCnt:

This counter keeps track of the number of times a

retransmission has occurred. The final count is loaded in statistics

vectors. It should only be written for test purposes, such as speeding

up simulation time.

Table 7-100. RandomNumGen Register

Bit(s) rw

Reset

Value Description/Function

31:10 r/w 0

Reserved:

Always read as 0.

9:0 r/w 0

RandomNumGen:

This is a Linear Feedback Shift Register (LFSR)

that generates random numbers which influence the number of slot

times in collision backoff. It should only be written for test purposes,

such as loading a predictable number to it rather than random.

1 2 ... 144 145 146 147 148 149 150 151 152 153 154 ... 189 190

Brak uwag

Adaptec AIC-6915 Informacje Techniczne Strona 149