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BIT1612 10-Bit Digital Video Decoder with OSD and T-CON
23
6.15 Background 2
BIT1612 內部提供 64 種背景色以提供在 4:3 模式下的邊框顯示,其相關Registers設定及其意義請參考
Table 6-17
Table 6-17 Background 2 Register
Mnemonic Address R/W Bits Description Default
R_BG2_R 0x037[7:6] RW 2
Background 2’s R Color used for 4:3
display
00
R_BG2_G 0x038[7:6] RW 2
Background 2’s G Color used for 4:3
display
00
R_BG2_B 0x039[7:6] RW 2
Background 2’s B Color used for 4:3
display
00
6.16 Background 1 and Test Pattern Setup
BIT1612 內部提供 8 種內定Test Patterns分別為 262144 種純色分隔線與漸層 (Ramp)其相關Registers
設定及其意義請參考
Table 6-18
Table 6-18 Background and Test Pattern Register
Mnemonic Address R/W Bits Description Default
R_TESTPAT_R 0x037[5:0] RW 6 Test Pattern R Color Value 0x00
R_TESTPAT_G 0x038[5:0] RW 6 Test Pattern G Color Value 0x00
R_TESTPAT_B 0x039[5:0] RW 6 Test Pattern B Color Value 0x3F
R_TESTPAT_Q 0x03A[7:0] RW 8 Test Pattern gradient ratio 0x00
Test Pattern Type
00: 262144 純色
01: 漸層(Ramp) Ratio = 1 pixel
10: 分隔線(Grid) Ratio = 16 pixels
R_TESTPAT_TYPE 0x03B[1:0] RW 2
11: 漸層(Ramp) Ratio = 16 pixels
00
漸層的變化
0: Decrease
R_TESTPAT_DIR 0x03B[2] RW 1
1: Increase
0
漸層的方向
0: Vertical
R_TESTPAT_HV 0x03B[3] RW 1
1: Horizontal
0
Background Mode Enable
0: Disable
R_BACKGROUND_EN 0x03B[6] RW 1
1: Enable
0
Free-Run Mode Enable
0: Disable
R_FREERUN_EN 0x03B[7] RW 1
1: Enable
0
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