DS730 Datasheet, PDF (27/46 Pages) Xilinx, Inc – LogiCORE IP Video Direct

LogiCORE IP Video Direct Memory Access v1.1
Table 7: Video DMA General Purpose Processor I/O Diagram (Cont’d)
Control, Status and Interrupts
sclr
ctrl_wd_reset
ctrl_rd_reset
ctrl_wd_flush
ctrl_rd_flush
ctrl_rd_fstore_ptr
ctrl_wd_fstore_ptr
ctrl_fcount_en
ctrl_hw_lockout
ctrl_hcrop_en
ctrl_sync_en
ctrl_circbuff_en
ctrl_rd_dma_en
ctrl_wd_dma_en
ctrl_wd_frame_delay
ctrl_rd_frame_delay
ctrl_wd_src_ptr_num
ctrl_rd_src_ptr_num
ctrl_rd_frame_preload
ctrl_wd_frame_preload
ctrl_rd_delay_preload
ctrl_wd_delay_preload
ctrl_wd_vsize
ctrl_wd_hsize
ctrl_wd_stride
ctrl_rd_vsize
ctrl_rd_hsize
ctrl_rd_stride
ctrl_wd_start_addr
ctrl_rd_start_addr
intr_wd_frame_count
intr_wd_delay_count
intr_wd_frame_repeat
intr_wd_frame_skip
intr_wd_done
intr_wd_done intr_rd_frame_count
intr_rd_delay_count
intr_rd_frame_repeat
intr_rd_frame_skip
intr_rd_done
intr_err_address
intr_err_write_busy
intr_err_wd_fifo
intr_err_write_busy
intr_err_rd_fifo
intr_err_rcmd_fifo
stat_busy
stat_cmd_almost_full
stat_cmd_full
stat_wd_full
stat_wd_almost_full
stat_rd_empty
stat_rd_almost_empty
stat_cmd_we
stat_wd_we
stat_rd_restat_last_fstore
stat_curr_rd_fstore
stat_curr_wd_fstore
stat_rd_frame_count
stat_wd_frame_count
stat_rd_delay_count
stat_wd_delay_count
stat_version
Table 8: GPP Gen-Lock Signals
Name
wd_frame_ptr_in
[(“Write Number of Masters”*5) -1:0]
wd_frame_ptr_out[4:0]
rd_frame_ptr_in
[(“Read Number of Masters”*5) -1:0]
rd_frame_ptr_out[4:0]
Direction
Description
In
Slave Gen-Lock Write Frame Pointer Input
Out
Master Gen-Lock Write Frame Pointer Output
In
Slave Gen-Lock Read Frame Pointer Input
Out
Master Gen-Lock Read Frame Pointer Output
DS730 September 21, 2010
www.xilinx.com
27
Product Specification