Non-Lso Read Dma Status Register (Offset: 0X4B04) - Broadcom NetXtreme/NetLink BCM5718 Series Programmer's Manual

BCM5718 Programmer's Guide
Name
Read DMA PCI Target Abort
Attention Enable
Enable
Reset

Non-LSO Read DMA Status Register (offset: 0x4B04)

Name
rdmad_length_d_0
Reserved
Read DMA PCI-X Split
Transaction Timeout Expired
Read DMA Local Memory
Write Longer Than DMA
Length Error
Read DMA PCI FIFO Overread
Error
Read DMA PCI FIFO Underrun
Error
Read DMA PCI FIFO Overrun
Error
Read DMA PCI Host Address
Overflow Error
Read DMA PCI Parity Error
Read DMA PCI Master Abort
Read DMA PCI Target Abort
Reserved
Broadcom
®
January 29, 2016 • 5718-PG108-R
Default
Bits Access Value
2 RO 0
1 RO 1
0 RO 0
Default
Bits Access Value
31:16 RO 0
15:11 RO 0
10 W2C 0
9 W2C 0
8 W2C 0
7 W2C 0
6 W2C 0
5 W2C 0
4 W2C 0
3 W2C 0
2 W2C 0
1:0 RO 3
Description
Enable Read DMA PCI Target Abort Attention.
This bit controls whether the Read DMA state
machine is active or not. When set to 0, it
completes the current operation and cleanly
halts. Until it is completely halted, it remains one
when read.
When this bit is set to 1, the Read DMA state
machine is reset. This is a self-clearing bit.
Description
–
–
Read DMA PCI-X split transaction timeout
expired.
Read DMA Local Memory Write Longer Than
DMA Length Error.
Read DMA PCI FIFO Overread Error (PCI read
longer than DMA length.)
Read DMA PCI FIFO Underrun Error.
Read DMA PCI FIFO Overrun Error.
Read DMA PCI Host Address Overflow Error. A
host address overflow occurs when a single DMA
read begins at an address below a multiple of
4 GB and ends at an address above the same
multiple of 4 GB (i.e., the host memory address
transitions from 0xXXXXXXXX_FFFFFFFF to
0xYYYYYYYY_00000000 in a single read). This
is a fatal error.
Read DMA PCI Parity Error.
Read DMA PCI Master Abort Error.
Read DMA PCI Target Abort Error.
–
RDMA Registers
Page 445