Z86130 ZILOG [Zilog, Inc.], Z86130 Datasheet - Page 41

• Manufacturer Part Number: Z86130
• Description: NTSC LINE 21 DECIDER
• Manufacturer: ZILOG [Zilog, Inc.]

Using the WAIT Command
The
communications for a period of time. The TEXTSET
example above used the WAIT command in two ways.
First to hold a display on screen for a period of time before
taking a second action. Then it was used to create a
smooth scroll by timing the wait to the scroll rate.
The WAIT command can also be used to control the
appearance of two OSD displays in sequence without
tying up the master device for the total display time. In the
following example, the POPSET mode is used to pop on
two sequential menu screens with a built-in pause
between the two displays. In this case the WAIT is placed
just before the last FLIP command. This allows the entire
command sequence to be sent to the Z86129 at once,
since the RDY bit will be set by the WAIT command, thus
allowing the FLIP to be input as well.
The command sequence would be as follows:
* FLIP cmd. Will flip memories, popping the second menu
on screen.
DS96TEL0200
OSD Command
OSD Command
{A6,C0}
WAIT
{33}
{36}
{38}
{36}
{ .. }
{ .. }
{ .. }
{ .. }
{ .. }
{ .. }
{a3,6e}
{a3,27}
{a3,74}
{a3,20}
{a3,70}
{a3,61}
{a3,6e}
{a3,69}
{a3,63}
{a3,2e}
command
Function
*select pop mode
*screen generation commands for
first display
* FLIP command. Will flip
memories, popping the first menu
on screen.
* OENM, to ensure non-displayed
memory is erased.
* screen generation commands for
second display
*wait 6 seconds
will
Function
*'n'
*'''
*'t'
*' '
*'p'
*'a'
*'n'
*'i'
*'c'
*'.'
suspend
serial
P R E L I M I N A R Y
port
Using The Graphics Character Set
The following example creates an OSD screen which
illustrates several features of the Z86129 including the use
of the Graphics character set to generate a large font word.
The particular features shown are purely for demonstration
purposes and not intended to suggest a particular
application.
For the sake of brevity, the "text" to be displayed will be
shown as a string within quotes rather than as the actual
command sequences required. Single quotes, ', will signify
standard characters while double quotes, ", will signify
double wide characters.
'The Z86129 has many
'Color and Underline
DEMONSTRATION
'besides displaying
OSD Cmd Code
may be used'
'THIS IS A
Captions.'
OF OSD'
features'
{A0,02}
{A2,00}
{A3,03}
{A0,03}
{A2,00}
{A3,08}
{A0,04}
{A2,00}
{A3,04}
{A0,06}
{A2,00}
{A3,07}
{A0,08}
{A2,00}
{A3,0a}
{A0,09}
{A2,00}
{A3,0c}
{33}
Function
* PAC, GREEN chars
* select poprow 3
* cursor to 0
* PAC, RED char
* cursor to 0
* Blue char
* PAC, Cyan Underlined
* PAC, Yellow chars
*" DOUBLE WIDE"
* PAC, Magenta chars
*select pop mode
*select poprow 2
*Move cursor to 0
*select poprow 4
*select poprow 6
*Move cursor to 0
*select poprow 8
*Move cursor to 0
*select poprow 9
*Move cursor to 0
NTSC Line 21 Decoder
Z86129/130/131
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