User guide

Chapter 16: Deinterlacer II MegaCore Function 16–9
Control Map Registers
January 2013 Altera Corporation Video and Image Processing Suite
User Guide
Control Map Registers
Table 16–4 describes the Deinterlacer II MegaCore function control register map. The
Deinterlacer II reads the control data once at the start of each frame and buffers the
data inside the MegaCore function. The registers may safely update during the
processing of a frame.
motion_write_master_waitrequest In
motion_write_master port Avalon-MM waitrequest
signal.The system interconnect fabric asserts this signal to
cause the master port to wait.
(2)
Notes to Table 16–3:
(1) Two read master interfaces are used: edi_read_master and ma_read_master .
(2) When you select Motion Adaptive High Quality or Motion Adaptive, one additional read master (
motion_read_master ) and one additional
write master (
motion_write_master ) ports are used to read and update motion values.
(3) Additional
av_mm_clock and av_mm_reset signals are available when you turn on Use separate clocks for the Avalon-MM master
interface(s).
(4) The signals associated with the
control slave port are not present unless you enable Run-time control.
Table 16–3. Deinterlacer II Signals (Part 4 of 4)
Signal Direction Description
Table 16–4. Deinterlacer II Control Register Map for Run-Time Control of the Motion-Adaptive Algorithm
Address Register Description
0
Control
Bit 0 of this register is the Go bit, all other bits are unused. Setting this bit to 0 causes
the Deinterlacer II to stop after generating the current output frame.
1
Status
Bit 0 of this register is the Status bit, all other bits are unused. When this bit is set
to 0, the Deinterlacer II either gets disabled through the
Go bit or waits to receive
video data.
2 Reserved This register is reserved for future use.
3
Cadence detect on
Setting bit 0 of this register to 1 enables cadence detection. Setting bit 0 of this
register to 0 disables cadence detection. Cadence detection is disabled on reset.
4
Cadence detected
Reading a 1 from bit 0, indicates that the Deinterlacer II has detected a cadence and
is performing reverse telecine. Reading a 0 indicates otherwise.