Samsung S5PC110 Manual page 1592

S5PC110_UM
9.2.2.5 MIXER_LAYER_CFG Register (MIXER_LAYER_CFG, R/W, Address = 0xF920_0010)
The priority value for video and each graphic layer can be set. The priority field is used to determine the priority of
a graphic layer. The graphic layer of higher value has the higher priority. This field is also used as on/off switch. If
one field is set to zero, the corresponding graphic layer is not displayed. If some layers have the same value, the
priority is like this: graphic layer 1 > graphic layer 0 > video. The priority is only determined by difference of
priority's value. For example, case1 and case 2 have the same effect.
•
Case1: GRP1 priority is 2 , GRP0 priority 3 , Video Priority 1
•
Case2: GRP1 priority is 14 , GRP0 priority 15 , Video Priority 13
MIXER_LAYER_CFG
Reserved
Graphic layer 1 priority
Graphic layer 0 priority
Video layer priority
NOTE: All the changes of this register are valid on a vertical sync signal of next frame when SYNC_ENABLE flag is set to
one. The "Hide" means that layer data is ready but is not displayed.
Bit
[31:12] Reserved, read as zero, do not modify
[11:8] 15 ~ 1 = the priority value
0 = Hides the graphic layer 1
[7:4] 15 ~ 1 = the priority value
0 = Hides the graphic layer 0
[3:0] 15 ~ 1 = the priority value
0 = Hides the video layer 0
Description
9 8BMIXER
Initial State
0
0
0
0
9-12