參數(shù)資料
型號(hào): TVP3025-135
廠商: Texas Instruments, Inc.
英文描述: Video Interface PALETTE(三PLL,視頻接口調(diào)色器)
中文描述: 視頻接口盒(三鎖相環(huán),視頻接口調(diào)色器)
文件頁(yè)數(shù): 75/99頁(yè)
文件大小: 663K
代理商: TVP3025-135
2–61
CURSOR-POSITION Y HIGH
D6
D5
D4
CURSOR-POSITION Y LOW
D6
D5
D4
Data Bit
D7
D3
D2
D1
D0
D7
D3
D2
D1
D0
Y Position
0
0
0
0
Y11
Y10
Y9
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
RS value = 11110
RS value = 11110
The cursor-position X and Y values to be written are calculated as follows:
X = desired display screen x position + 64 (or 0040 hex)
Y = desired display screen y position + 64 (or 0040 hex)
The x and y reference point (x = 0, y = 0) is the upper left corner of the screen. Values from 0 (0000 hex)
to 4095 (0fff hex) can be written into the X and Y registers. If X = 0, the cursor is off the screen. If
Y = 0, the cursor is entirely off the screen. See cursor operation in Section 2.4.12.
2.4.17
BT485 Features Not Supported and Differences
Cursor color 3. See Section 2.4.12
Interleaved cursor mode
32 x 32 cursor
Cursor highlight logic
Sync on all three channels red, green, blue. The TVP3025 supports sync on green only.
Real time switching of 16-bit per pixel data using pixel bit P7D.
Contiguous addressing for 16-bit pixel data.
16-bit per pixel operation with 1:1 multiplexing. Only multiplexing modes of 2:1 or 4:1 are
supported for 16-bit per pixel operation.
Tri-state SCLK
Test functions
Port select mask. CR25 is used to switch between VGA and non-VGA.
Four bit per pixel sequencing is made consistent, i.e., always the low numbered nibble is
displayed first.
Power down mode circuitry slightly different than the BT485.
Overscan must be enabled in the TVP3025 indirect register general-control register bit 6.
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