2.2 BSP Rel. 1.0 for PPMC-275 Programmer's Guide

API Call Reference List of APIs
STATUS sdmaAllocateDescriptorsForOnePort (PORT_ALLOCATION_STRUCT*
portAllocationStruct)
DESCRIPTION Allocates descriptors for each port. It writes the first descriptor
pointer to a table that is used by the low level for DMA initialization.
INPUT
PORT_ALLOCATION_
STRUCT*
portAllocationSt
ruct
Table 13:SDMA Channel Structure: TX_PACKET
Type Field Bit width Description
UINT32 portNumber 4 The Port number.
UINT32 PacketSize 12 Packet Size
UINT32 appendCrc 1
UINT32 priority 1
UINT32 destHigh 16
UINT32 destLow
UINT32 srcHigh 16
UINT32 srcLow
UINT32 pattern
PORT_ALLOCATION_STRUCT*
OUTPUT Writes the first allocated descriptor pointer to a table that is used
by the low level for DMA initialization
VxWorks 5.5/Tornado 2.2 BSP Rel. 1.0 for PPMC-275 5 - 67