DS730 Datasheet, PDF (11/46 Pages) Xilinx, Inc – LogiCORE IP Video Direct

LogiCORE IP Video Direct Memory Access v1.1
Table 1: Video DMA pCore Memory Mapped Register Set (Cont’d)
Address (hex)
Register Name
Access Type
Description
BASEADDR +
0x0014
Status Frame Store
R
General Status Register for Frame Store
Information
31
VDMA Busy
DMA transaction in progress.
30
Cmd FIFO Full
29
Cmd FIFO Almost Full
28
Write FIFO Full
27
Write FIFO Almost Full
26
Read FIFO Empty
25
Read FIFO Almost Empty
24
Cmd FIFO Write Enable
23
Write FIFO Write Enable
22
Read FIFO Read Enable
20:21 Reserved
16:19
Max Valid Frame Store
Number of last Frame Store in
VDMA. The VDMA can be
configured for 1 – 16 frame stores.
This register will report 0 – 15.
8:15 Reserved
Current Read Frame Store
Pointer to Current Frame Store
4:7
Start Address Number. Reports
the frame store the current
transaction is operating upon.
Current Write Frame Store
Pointer to Current Frame Store
0:3
Start Address Number. Reports
the frame store the current
transaction is operating upon.
DS730 September 21, 2010
www.xilinx.com
11
Product Specification