參數(shù)資料
型號(hào): TVP3010M
廠商: Texas Instruments, Inc.
英文描述: Video Interface Palette
中文描述: 視頻接口面板
文件頁(yè)數(shù): 56/90頁(yè)
文件大?。?/td> 491K
代理商: TVP3010M
2–40
2.16.3
The cursor control register, see Table 2–21, controls various on-chip cursor functions of the palette. This
register may be accessed by the MPU at any time. Bit 7 of the cursor control register corresponds to data
bus bit 7, index = 06 (hex).
Cursor Control Register
Table 2–21. Cursor Control Register
BIT NAME
CCR7
VALUES
DESCRIPTION
X
0: Disable (default)
Reserved
CCR6
Sprite-cursor enable. CCR6 enables (1) or disables (0) the 64
×
64 sprite
cursor.
1: Enable
( )
( )
CCR5
0: (default)
Dual-cursor format. CCR5 specifies the display format at the intersection of the
crosshair cursor and the user-defined cursor area (see subsection 2 5 5 and
crosshair cursor and the user-defined cursor area (see subsection 2.5.5, and
the cursor-intersection truth table).
1:
CCR4
0: XGA (default)
64
×
64 cursor-mode select. CCR4 specifies whether the XGA (0) or
×
X-windows format is used to interpret the data stored in the 64
64 cursor
sprite RAM (see subsection 2.5.2).
1: X-windows
CCR3
0: Color 0 (default)
Crosshair-color selection. CCR3 specifies whether the crosshair cursor is to
be displayed in color 1 (logical 1) or color 0 (logical 0).
1: Color 1
CCR2
0: Disable (default)
Crosshair-cursor enable. CCR2 specifies whether the crosshair cursor is to be
displayed in color 1 or not in color 0.
1: Enable
00: 1 pixel (default)
Crosshair thickness CRR1 and CCR0 specify whether the vertical and
Crosshair thickness. CRR1 and CCR0 s ecify whether the vertical and
horizontal thickness of the crosshair is one, three, five, or seven pixels. The
segments are centered about the value in the cursor-position (X and Y)
register.
CCR1 CCR0
CCR1, CCR0
01: 3 pixels
10: 5 pixels
11: 7 pixels
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