Adaptec AIC-6915 Informazioni Techniche Scaricare il pdf (Pagina 111)

7-39

HiPrTxDescQueueBaseAddr Register

Type: R/W

Internal Registers Su/jointfilesconvert/419897/bgroup: Ethernet Functional Registers

Byte Address: 94h - 97h

LoPrTxDescQueueBaseAddr Register

Type: R/W

Internal Registers Su/jointfilesconvert/419897/bgroup: Ethernet Functional Registers

Byte Address: 98h - 9Bh

Table 7-47. HiPrTxDescQueueBaseAddress Register

Bit(s) rw

Reset

Value Description/Function

31:8 r/w 0

HighPriorityTxDescQueueBaseAddress[31:8]:

When written with

a nonzero value, this field indicates the starting address of the queue

in host memory. It is written by the software driver during device

initialization. The address must be aligned to a 256-byte boundary.

The producer and consumer indices are pointing to a doubleword

(8-byte address) in the queue.

7:0 r/w 0

HighPriorityTxDescQueueBaseAddress[7:0]:

Must be 0.

Table 7-48. LoPrTxDescQueueBaseAddress Register

Bit(s) rw

Reset

Value Description/Function

31:8 r/w 0

LowPriorityTxDescQueueBaseAddress[31:8]:

When written with a

nonzero value, this field indicates the starting address of the queue