參數(shù)資料
型號: TVP3030-175
廠商: Texas Instruments, Inc.
英文描述: Video Interface PALETTE Exract(1600×1200,24位真彩色視頻接口調(diào)色器)
中文描述: 視頻接口調(diào)色板Exract(1600 × 1200,24位真彩色視頻接口調(diào)色器)
文件頁數(shù): 62/107頁
文件大?。?/td> 689K
代理商: TVP3030-175
2–46
2.16.3
The indirect cursor-control register is accessed via the indirect register map. This register provides for
enabling and disabling the cursor and other cursor controls. The cursor mode select may also be controlled
using the direct cursor control register. The indirect cursor-control register definition is listed in Table 2–25.
Table 2–25. Indirect Cursor-Control Register
Indirect Cursor-Control Register (Index: 0x06, Access: R/W, Default: 0x00)
BIT NAME
VALUES
DESCRIPTION
CCR7
0: Use indirect
CCR (default)
Cursor-control register select. This selects which cursor control register is
used (direct or indirect). The video BIOS must initialize this bit to logic 1 for
driver software that uses the direct cursor control register.
1: Use direct CCR
CCR6
0: Normal (default)
ODD/EVEN sense invert. When CCR6 is logic 0, the field indicator ODD/EVEN
used by the hardware cursor in interlaced display mode, is logic 1 for the odd
field and is logic 0 for the even field. When CCR6 is logic 1, the polarity of
ODD/EVEN is the opposite.
1: Invert
p y
CCR5
0: Disable (default)
Enable interlaced cursor. When CCR5 is logic 1, interlaced cursor operation
is enabled During interlaced cursor operation the ODD/EVEN terminal
isena bled. During interlaced cursor operation, the ODD/EVEN terminal
indicates the odd or even field, with the sense determined by CCR6.
1: Enable
CCR4
0: 2048 pixels
(default)
Vertical blank detection method. Vertical blank is detected using only the blank
signal. The logic detects when there has been either 2048 or 4096 consecutive
dot clocks between rising edges BLANK.
1: 4096 pixels
CCR3, CCR2
00: (default)
Cursor RAM address bits 9 and 8. CCR3 is bit 9 and CCR2 is bit 8. These are
used with the lower 8 bits of the cursor RAM address supplied by the cursor
RAM address register in the direct register map.
CCR1 CCR0
CCR1, CCR0
00: Cursor off
(default)
Cursor mode select. Used to disable the cursor and to select the format used
to interpret the information stored in the cursor RAM when displaying the
cursor. See Table 2–22.
h f
01: Three color
cursor
10: XGA cursor
11: X-windows
cursor
p y g
2.16.4
Direct Cursor-Control Register (Direct Register: 1001, Access: R/W,
Default: 0x00)
The direct cursor control register is accessed via the direct register map. This register provides an alternate
means of enabling and disabling the cursor and selecting the cursor mode. This register is provided for
compatibility with currently available software drivers. The direct cursor-control register definition is listed
in Table 2–26.
Table 2–26. Direct Cursor-Control Register
BIT NAME
DCC7–DCC2
VALUES
DESCRIPTION
000000
00: Cursor off
(default)
Reserved
DCC1 DCC0
DCC1, DCC0
Cursor mode select. Used to disable the cursor and to select the format used
to interp
cursor. See Table 2–22.
h f
01: Three color
cursor
10: XGA cursor
11: X-windows
cursor
p y g
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