IPSR-VIDEO Altera, IPSR-VIDEO Datasheet - Page 192

• Manufacturer Part Number: IPSR-VIDEO
• Description: RENEWAL Of IPS-VIDEO
• Manufacturer: Altera
• Series: IP Suitesr

Specifications of IPSR-VIDEO

• Software Application: IP CORE, SUITES
• Supported Families: Arria GX, Cyclone II, HardCopy II, Stratix II
• Features: Common Avalon Streaming (Avalon-St) Interface And Avalon-St Video Protocol
• Core Architecture: FPGA
• Core Sub-architecture: Arria, Cyclone, Stratix
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na

7–12
Table 7–13. Gamma Corrector Control Register Map: Interface 0
Table 7–14. Gamma Corrector Control Register Map: Interface 1
Table 7–15. Gamma Corrector Control Register Map: Interface 2
Video and Image Processing Suite User Guide
0
1
2 to 2
is the number of
bits per color plane.
0
1
2 to 2
is the number of
bits per color plane.
0
1
2 to 2
is the number of
bits per color plane.
Address
N
Address
N
Address
N
+1 where N
+1 where N
+1 where N
Register Name
Control
Status
Gamma Look-
Up Table
Register Name
Unused
Unused
Gamma Look-
Up Table
Register Name
Unused
Unused
Gamma Look-
Up Table
The control registers are read continuously during the operation of the MegaCore
function, so making a change to part of the Gamma look-up table during the
processing of a frame always has immediate effect. To synchronize changes to frame
boundaries, follow the procedure which is described in
Interfaces” on page
The width of each register in the Gamma Corrector control register map is always
equal to the value of the Bits per pixel per color plane parameter selected in the
parameter editor.
Bit 0 of this register is the Go bit, all other bits are unused. Setting this bit to 0
causes the Gamma Corrector MegaCore function to stop the next time control
information is read. Refer to
details.
Bit 0 of this register is the Status bit, all other bits are unused. Refer to
MM Slave Interfaces” on page 4–17
These registers contain a look-up table that is used to apply gamma correction to
video data. An input intensity value of x is gamma corrected by replacing it with the
contents of the (x+1)th entry in the look-up table. Changing the values of these
registers has an immediate effect on the behavior of the MegaCore function. To
ensure that gamma look-up values do not change during processing of a video
frame, use the Go bit to stop the MegaCore function while the table is changed.
This register is not used
This register is not used
These registers contain a look-up table that is used to apply gamma correction to
video data. An input intensity value of x is gamma corrected by replacing it with the
contents of the (x+1)th entry in the look-up table. Changing the values of these
registers has an immediate effect on the behavior of the MegaCore function. To
ensure that gamma look-up values do not change during processing of a video
frame, use the Go bit in Interface 0 to stop the MegaCore function while the table is
changed.
This register is not used
This register is not used
These registers contain a look-up table that is used to apply gamma correction to
video data. An input intensity value of x is gamma corrected by replacing it with the
contents of the (x+1)th entry in the look-up table. Changing the values of these
registers has an immediate effect on the behavior of the MegaCore function. To
ensure that gamma look-up values do not change during processing of a video
frame, use the Go bit in Interface 0 to stop the MegaCore function while the table is
changed.
4–17.
“Avalon-MM Slave Interfaces” on page 4–17
Description
Description
Description
for full details.
“Avalon-MM Slave
Chapter 7: Control Register Maps
January 2011 Altera Corporation
Gamma Corrector
“Avalon-
for full