M35071 Datasheet, PDF (9/40 Pages) Mitsubishi Electric Semiconductor – SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS

MITSUBISHI MICROCOMPUTERS
M35071-XXXSP/FP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
REGISTERS DESCRIPTION
(1) Address 12016
DA
Register
Status
Contents
Function
Remarks
0
DIV0
(Note 3)
0 _{Set division value (multiply value) of horizontal oscillation frequency. Set display frequency by division value}
1
(multiply value) setting.
For details, see REGISTER
0
1
DIV1
(Note 3)
10
1
N1 = Σ (DIVn × 2n)
n=0
SUPPLYMENTARY DESCRIPTION
(1).
0 N1 : division value (multiply value)
2
DIV2
(Note 3)
1
Also, set the display frequency range by
registers DIVS0, DIVS1(address
12016), RSEL0(address 12116) and
RSEL1(address 12216) in accordance
0
3
DIV3
(Note 3)
1
with the display frequency.
Any of this settings above is required
0
4
DIV4
only when EXCK1 = 0, EXCK0 = 1 and
EXCK1 = 1, EXCK0 = 1.
(Note 3)
1
0
5
DIV5
(Note 3)
1
0
6
DIV6
(Note 3)
1
0
7
DIV7
(Note 3)
1
0
8
DIV8
(Note 3)
1
0
9
DIV9
(Note 3)
1
0
A
DIV10
(Note 3)
1
0 _{For setting, see REGISTER SUPPLYMENTARY DESCRIPTION Set display frequency range.}
B
DIVS0
(2).
(Note 3)
1
0
C
DIVS1
(Note 3)
1
0 It is used to "0A", normally.
D
VJT
(Note 3)
1 Alleviates continuous vertical jitters.
0
EXCK1 EXCK0
Display clock input
0
0 External synchronous (external clock)
E
EXCK0
0
1
Internal synchronous
(Note 3)
1
1
0
Do not set
1
1 External synchronous (internal clock)
Display clock setting
See REGISTER SUPPLYMENTARY
DESCRIPTION (1)
EXCK1 : address12316
____
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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