CH4_LLP

         This is the Linked List Pointer register. This register must be programmed to point to the first Linked List Item (LLI) in memory prior to enabling the
channel if linked-list-based block chaining is enabled. This register is updated with new value of linked list pointer during the LLI update stage of dma transfer.
      
Module Instance Base Address Register Address
i_dma__dmac0_ahb_slv__10db0000__Channel4_Registers_Address_Block__SEG_L4_AHB_dmac0_s_0x0_0x10000 0x10DB0400 0x10DB0428

Size: 64

Offset: 0x28

Access: RW

Important: The value of a reserved bit must be maintained in software. When you modify registers containing reserved bit fields, you must use a read-modify-write operation to preserve state and prevent indeterminate system behavior.
Bit Fields
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48

LOC

RW 0x0

47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32

LOC

RW 0x0

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

LOC

RW 0x0

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

LOC

RW 0x0

RSVD_DMAC_CHx_LLP_1to5

RO 0x0

LMS

RO 0x0

CH4_LLP Fields

Bit Name Description Access Reset
63:6 LOC
Starting Address Memory of LLI block
Starting Address In Memory of next LLI if block chaining is enabled. The six LSBs of the starting address
are not stored because the address is assumed to be aligned to a 64-byte boundary.
LLI access always uses the burst size (arsize/awsize) that is same as the data bus width and cannot be changed or
programmed to anything other than this. Burst length (awlen/arlen) is chosen based on the data bus width so that the access does not cross one complete LLI structure of 64 bytes. DW_axi_dmac will fetch
the entire LLI (40 bytes) in one AXI burst if the burst length is not limited by other settings.
RW 0x0
5:1 RSVD_DMAC_CHx_LLP_1to5
DMAC Channelx Linked List Pointer Register (bits 1to5) Reserved bits - Read Only
RO 0x0
0 LMS
LLI master Select
This bit identifies the AXI layer/interface where the memory device that stores the next linked list item resides. 
 - 0: AXI Master 1
 - 1: AXI Master 2
This field does not exist if the configuration parameter DMAX_CHx_LMS is not set to NO_HARDCODE.
In this case, the read-back value is always the hardcoded value. The maximum value of this field that can be read back is 'DMAX_NUM_MASTER_IF-1'.
Value Description
0x0 next Linked List item resides on AXI Master1 interface
0x1 next Linked List item resides on AXI Master2 interface
RO 0x0