M35071 Datasheet, PDF (17/40 Pages) Mitsubishi Electric Semiconductor – SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS

MITSUBISHI MICROCOMPUTERS
M35071-XXXSP/FP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
(9) Address 12816
DA Register
Status
Contents
Function
0 Blanking of BLK0, BLK1
0
BCOL
1 All raster blanking
Remarks
Sets all raster blanking
1
__
B/F
(Note 3)
0 Synchronize with the leading edge of horizontal synchronization. _{Synchronize with the front porch or}
back porch of the horizontal
1 Synchronize with the trailing edge of horizontal synchronization. _{synchronazation signal.}
0 Do not mask by VERT input signal
2
VMASK
(Note 3)
1 Mask by VERT input signal
Set mask at phase comparison
operating.
0 VERT pin is negative polarity
3
POLV
(Note 3)
1 VERT pin is positive polarity
Set VERT pin polarity.
0 HOR pin is negative polarity
4
POLH
(Note 3)
1 HOR pin is positive polarity
Set HOR pin polarity.
5
0
BLK0
BLINK1 BLINK0
Blanking mode
1
0
0 Matrix-outline size
0
1 Character size
0
6
BLK1
1
0 Border size
1
1 Matrix-outline size
1
(When DSPn (address 12416) = “0”)
0 Border display of character
7
SYAD
1 Shadow display of character
Set blanking mode.
See “DISPLAY SHAPE 2”.
See “DISPLAY FORM1 (2)”.
0 RAM not erased
8
RAMERS
1 RAM erased
There is no need to reset because
there is no register for this bit.
0 Oscillation of clock for display
9
STOP
1 Stop the oscillation of clock for display
It is a test bit (TEST13) in the page 1
register, therefore fix it to “0”.
0 Display OFF
A
DSPON
1 Display ON
0
B
BLINK0
1
0
C
BLINK1
1
BLINK
1
0
0
0
0
1
1
0
1
1
Duty
Blinking OFF
25%
50%
75%
Set blinking duty ratio.
0 Divided into 64 of vertical synchronous signal
D
BLINK2
1 _{Divided into 32 of vertical synchronous signal}
Set blinking frequency.
0 _{For setting, see MODE0 (address 12716).}
E
MODE1
(Note 3)
1
Sets the display mode for when 2
pages are displayed at the same time.
____
Notes 1. The mark around the status value means the reset status by the "L" level is input to AC pin.
2. The page in which data is written is controlled by the DAF bit. When set to "0", data is written into page 0, whereas when set to "1",
data is written into page 1.
3. Registers marked with (Note 3) are found only in page 0, therefore the register value does not change when the DAF bit is set to "1".
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