z86131 ZiLOG Semiconductor, z86131 Datasheet - Page 47

• Manufacturer Part Number: z86131
• Description: Ntsc Line 21 Decoder
• Manufacturer: ZiLOG Semiconductor

ZiLOG
Using Textset
TEXTSET features an OSD mode that paints on the screen
in a manner similar to a TEXT Mode display. The memory
is organized using the current information in the Text Po-
sition register and the display follows the current setting in
the Display register. The default display parameters for
OSD are 15 lines per row, Drop Shadow mode. The TEXT-
SET command can be followed by successive WRITE
CHAR commands interspersed with the RETURN com-
mand at the appropriate points to paint on an OSD display
starting at the top of the Text window as set by the Text Po-
sition register and moving to the next line at each RETURN
command. The display scrolls if a RETURN command is
sent when at the bottom of the Text window. A subsequent
TEXTSET command clears the screen and generate a new
OSD screen.
DS007200-TVX0199
OSD
Command
{A0,0c}
{A3,06}
{A3,53}
{A3,65}
{A3,6c}
{A3,65}
{A3,63}
{A3,74}
{A3,3a}
{A3,20}
{A3,45}
{A3,4e}
{A3,54}
{A3,45}
{A3,52}
{A3,20}
{A3,20}
{A3,45}
{A3,78}
{A3,69}
{A3,74}
{A3,3a}
{A3,20}
{A3,4d}
{A3,45}
{A3,4e}
{A3,55}
{36}
Function
*select poprow c
*CYAN char
*ÒSÓ
*ÒeÓ
*ÒlÓ
*ÒeÓ
*ÒcÓ
*ÒtÓ
*Ò:Ó
*Ò Ó
*ÒEÓ
*ÒNÓ
*ÒTÓ
*ÒEÓ
*ÒRÓ
*Ò Ó
*Ò Ó
*ÒEÓ
*ÒxÓ
*ÒiÓ
*ÒtÓ
*Ò:Ó
*Ò Ó
*ÒMÓ
*ÒEÓ
*ÒNÓ
*ÒUÓ
*FLIP command ßips memories, and pops
the full menu on-screen.
P R E L I M I N A R Y
The following example presents an OSD display generated
using TEXTSET. This screen paints on rather than pop on.
Features like flash are included in the command sequence
for demonstration purposes.
The TEXT display is first set to 4 rows at the bottom of the
screen.
OSD
Command
{C3,D4}
{C1,80}
{C2,A6}
{32}
{A2,05}
{A3,08}
{A3,B9}
{A5,57}
{A5,41}
{A5,52}
{A5,4E}
{A5,49}
{A5,4E}
{A5,47}
{A5,20}
{30}
{A2,00}
{A3,0A}
{A3,54}
{A3,68}
{A3,65}
{A3,72}
{A3,65}
{A3,20}
{A3,69}
{A3,73}
{A3,20}
{A3,61}
{A3,20}
{A3,74}
{A3,6F}
{A3,72}
{A3,6E}
{A3,61}
Function
*set Textpos reg for base row 13, 4 rows
*set OSD display for BOX mode, 15
lines/row
*set BOX to Blue, keep HPOS unchanged
*select TEXTSET mode
*The next two commands are used for posi-
tioning and color.
*cursor to char pos 5
*mid code to make Red chars. Cursor
moves to 6
*mid code to start Flash, Cursor moves to 7
*ÔWÕ Double-Wide, char col 7,8
*ÔAÕ Double-Wide, char col 9,10
*ÔRÕ Double-Wide, char col 11,12
*ÔNÕ Double-Wide, char col 13,14
*ÔIÕ Double-Wide, char col 15,16
*ÔNÕ Double-Wide, char col 17,18
*ÔGÕ Double-Wide, char col 19,20
*Ô Õ Double-Wide, char col 21,22
*Return moves cursor to next row, char pos 1
*Cursor to char pos 0
*PAC sets color to Yellow, cursor moves to
char pos 1
*ÔTÕ single-width, cursor moves to char pos 2
*ÔhÕ
*ÔeÕ
*ÔrÕ
*ÔeÕ
*Ô Õ
*ÔiÕ
*ÔsÕ
*Ô Õ
*ÔaÕ
*Ô Õ
*ÔtÕ
*ÔoÕ
*ÔrÕ
*ÔnÕ
*ÔaÕ
NTSC Line 21 Decoder
Z86129/130/131
47