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BIT1612 10-Bit Digital Video Decoder with OSD and T-CON
70
6.33 Timer
BIT1612 提供了兩個獨立 16 位元的計數器,相關說明及設定請參考下列圖表。
Table 6-65 Timer Register
Mnemonic Address R/W Bits Description Default
R_TIMER0_VAL 0x143[7:0],0x142[7:0] RW 16 Timer 0 Count Value 0x0000
Timer 0 Enable
0: Disable
R_TIMER0_EN 0x144[0] RW 1
1: Enable
0
Timer 0 Count Mode
0: Circulation
R_TIMER0_MODE 0x144[1] RW 1
1: One-Shot
0
Timer 0 Count Base
00: Output VSYNC
01: Output HSYNC
10: Input VSYNC
R_TIMER0_BASE_MODE 0x144[3:2] RW 2
11: Input HSYNC
00
R_TIMER1_VAL 0x146[7:0],0x145[7:0] RW 16 Timer 1 Count Value 0x0000
Timer 1 Enable
0: Disable
R_TIMER1_EN 0x147[0] RW 1
1: Enable
0
Timer 1 Count Mode
0: Circulation
R_TIMER1_MODE 0x147[1] RW 1
1: One-Shot
0
Timer 1 Count Base
00: Output VSYNC
01: Output HSYNC
10: Input VSYNC
R_TIMER1_BASE_MODE 0x147[3:2] RW 2
11: Input HSYNC
00
XCLK
TIMER0_OUT
COUNTER0
R_TIMER0_EN
R_TIMER0_MODE
R_TIMER0_BASE_MODE[1:0]
R_TIMER0_VAL[7:0]
0
5
0054321123 4 05
Figure 6-47 Timer Mode 0 (Circulation)
XCLK
TIMER0_OUT
COUNTER0
R_TIMER0_EN
R_TIMER0_MODE
R_TIMER0_BASE_MODE[1:0]
R_TIMER0_VAL[7:0]
0432105
0
5
Figure 6-48 Timer Mode 1 (One-Shot)
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