
BIT1612 10-Bit Digital Video Decoder with OSD and T-CON
63
Color FONT RAM
0x3F
0x02
0x07
0x00
0x20
0x01
0x20
0x3E
0x1F
0x3F
0x10
0x01
0x60B
0x60C
0x60A
0x608
0x609
0x02
0x10
0x60B
0x60C
0x60A
0x608
0x609
0x60B
0x60C
0x60A
0x608
0x609
0x01
R_BANK_SEL = 000R_BANK_SEL = 010R_BANK_SEL = 100
If Display RAM
{0x501[4],0x401[6:0]}
= 0xB0
Figure 6-43 OSD Color Font RAM
Table 6-59 OSD Memory Mapping Table
Memory Mapping Address
Display RAM (CODE) 400H~4FFH
Display RAM (ATTR.) 500H~5FFH
Palette RAM
300H~33FH
(Same as 340H~37FH, 380H~3BFH, 3C0H~3FFH)
R_BANK_SEL=000
map to User Font 0~7
or Color R Font 0~7
R_BANK_SEL=001
map to User Font 8~15
or Color R Font 8~15
R_BANK_SEL=010
map to User Font 16~23
or Color G Font 0~7
R_BANK_SEL=011
map to User Font 24~31
or Color G Font 8~15
R_BANK_SEL=100
map to User Font 32~39
or Color B Font 0~7
User Programmable Font RAM
(Color Font RAM)
600H~6FFH
R_BANK_SEL=101
map to User Font 40~47
or Color B Font 8~15
6.32.3 OSD Windows Attributes
BIT1612 可以分別為 3 個 OSD 視窗設定不同的屬性。
Table 6-60 OSD Windows Attribute Register
Mnemonic Address R/W Bits Description Default
R_W0_INDEX_S 0x107[7:0] RW 8 OSD0 Display RAM Start Index 0x00
R_W0_INDEX_E 0x108[7:0] RW 8 OSD0 Display RAM End Index 0xFF
R_W0_FADE 0x10B[3:0] RW 4 OSD0 Fade In/Out Level 0xF
R_W0_WMIRX 0x109[6] RW 1 OSD0 Window Mirror for Horizontal 0
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