LC74780M(2001) Ver la hoja de datos (PDF) - SANYO -> Panasonic
Número de pieza
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LC74780M Datasheet PDF : 14 Pages
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LC74780, 74780M
COMMAND5: Display Control Setting Command
COMMAND5: first byte
DA0 to
DA7
0
1
Register name
INT
NON
Status
0
1
0
1
Register Contents
Function
External synchronization
Internal synchronization
Interfaced
Non-interfaced
2
NP0
0
NP1
NP0
1
0
0
0
3
NP1
1
0
1
1
0
1
1
Mode select
NTSC
PAL-M
PAL
NTSC
4
1
5
0
COMMAND5 identification code
6
1
7
1
Remarks
Switches between external and
internal synchronization
Switches between interlaced and
non-interlaced
Switches between NTSC, PAL
and PAL-M modes
COMMAND5: second byte
DA0 to
DA7
Register name
Status
Register Contents
Function
0
Background color phase
0
PH0
PH2
PH1
PH0
NTSC
PAL
1
0
0
0
π/2*
±π/2
0
1
PH1
1
0
0
1
In phase* In phase
0
1
0
3π/2*
π/2
0
1
1
π*
±π
1
0
0
3π/4
±3π/4
1
0
1
π/4
±π/4
0
2
PH2
1
1
0
7π/4
π/4
1
1
1
1
5π/4
3π/4
* NTSC at 2fSC
0
Color burst signal is output
3
CB
1
Color burst signal output is halted
0
Background color present
4
BCL
1
Background color not present (background level only is set)
5
0
6
0
7
0
Second byte identification bit
Note
On system reset with RST, the status of all registers is set to 0.
Remarks
PAL color burst, background color
phase diagram
Applies when BCL=1
Applies for internal
synchronization only
COMMAND6: Synchronization Signal Control Setting Command
COMMAND6: first byte
DA0 to
DA7
0
1
2
3
4
5
6
7
Register name
MUT
DISLIN
MOD0
MOD1
Status
0
1
0
1
0
1
0
1
0
1
1
1
Register Contents
Function
Normal output
CVIN is cut and CVOUT is fixed at the pedestal level
12 lines
10 lines
Composite sync signal
Character and border OR-signal output
Composite synchronization separation signal
HIGH-level output for internal sync
COMMAND6 identification code
Remarks
Switches CVOUT
Selects the number of display
lines
Switches CSYNOUT
Switches SEPOUT
No.4490–10/14
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