Sensoray 614 Caption Overlay - Manual (Page 9)

Overlay/Caption Window-8 Y Position: Y8STOP Reg INDEX: 2F h
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R/W 0 0 0 0 0 0 Y8STOP9 Y8STOP8 Y8STOP7 Y8STOP6 Y8STOP5 Y8STOP4 Y8STOP3 Y8STOP2 Y8STOP1 Y8STOP0
DEFAULT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Y8STOP[9:0] is the vertical stop position of the 8th window, in pixels/lines
Overlay/Caption Scale Control: SCALE Reg INDEX: 30 h
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
R/W W8S1 W8S0 W7S1 W7S0 W6S1 W6S0 W5S1 W5S0 W4S1 W4S0 W3S1 W3S0 W2S1 W2S0 W1S1 W1S0
DEFAULT 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SCALE[1:0] is for Window-1: 00 -- x1; 01 -- x2; 10 – x2 (vertically); 11 -- x4
SCALE[3:2] is for Window-2: 00 -- x1; 01 -- x2; 10 – x2 (vertically); 11 -- x4
SCALE[5:4] is for Window-3: 00 -- x1; 01 -- x2; 10 – x2 (vertically); 11 -- x4
SCALE[7:6] is for Window-4: 00 -- x1; 01 -- x2; 10 – x2 (vertically); 11 -- x4
SCALE[9:8] is for Window-5: 00 -- x1; 01 -- x2; 10 – x2 (vertically); 11 -- x4
SCALE[11:10] is for Window-6: 00 -- x1; 01 -- x2; 10 – x2 (vertically); 11 -- x4
SCALE[13:12] is for Window-7: 00 -- x1; 01 -- x2; 10 – x2 (vertically); 11 -- x4
SCALE[15:14] is for Window-8: 00 -- x1; 01 -- x2; 10 – x2 (vertically); 11 -- x4
Indirect Access FPGA RAM Blocks
(Used for storing Caption Overlay Bitmap Data and Attributes)
For Window-1 and Window-2:
Each Bitmap-Block is composed of 16-bit/word x 8 words, which holds 8 pixels x 16 lines of one bitmap-block data
or one character font (8 pixels x 16 lines, if in text mode).
RAM Bitmap-Block #0~7, Data: 000 h – 03f h
RAM Bitmap-Block #8~15, Data: 040 h – 07f h