LC74772V(1997) Просмотр технического описания (PDF) - SANYO -> Panasonic
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LC74772V Datasheet PDF : 16 Pages
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LC74772V
{ COMMAND 3 (General-purpose port control)
First byte
DA0 to DA7
7
6
5
4
3
2
1
0
Register name
—
—
—
—
PORT
SET
OUT
P11
OUT
P10
OUT
P9
State
0
0
1
1
0
1
0
1
0
1
0
1
Register content
Function
Command 3 identification code
System 4 functions as a normal character and border outputs.
System 4 functions as general-purpose ports.
The pin 11 output is set to low.
The pin 11 output is set to high.
The pin 10 output is set to low.
The pin 10 output is set to high.
The pin 9 output is set to low.
The pin 9 output is set to high.
Note
Controls the pin 10 (BLK4) and pin 11
(CHA4) outputs.
Sets the output when PORTSET is
set to 1.
Sets the output when PORTSET is
set to 1.
Sets the output for pin 9 during normal
operation (other than during a reset).
| COMMAND 4 (Display control: reverse video and blinking)
First byte
DA0 to DA7
7
6
5
4
3
2
1
0
Register name
—
—
—
—
RVS
ON
BLK
ON
BLK1
BLK0
State
0
1
0
0
Register content
Function
Command 4 identification code
0—
Characters for which the attribute is specified are displayed
1
in reverse video.
0—
Characters for which the attribute is specified are
1
displayed blinking.
0
BLK1 BLK0
Operation
1
0
0
V × 25 (PAL: 0.5 s)
0
1
V × 30 (NTSC: 0.5 s)
0
1
0
V × 50 (PAL: 1.0 s)
1
1
V × 60 (NTSC: 1.0 s)
1
Note: This register is set to 0 on a reset (either by the RST pin or by a command reset).
Note
The blinking period setting
The duty is 60% for all types.
Character display on: 60%
Character display off: 40%
V: Vertical period
No. 5159-9/16
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