M35074 Datasheet, PDF (8/44 Pages) Renesas Technology Corp – SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS

MITSUBISHI MICROCOMPUTERS
M35074-XXXSP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
REGISTERS DESCRIPTION
(1) Address 12016
DA Register
Status
Contents
Function
Remarks
0
DIV0 ⁰
Sets division value (multiply value) of horizontal oscillation frequency. ^{Sets display frequency by division value}
1
(multiply value) setting.
1
DIV1 ⁰
1
11
N1 = Σ (DIVn ✕ 2 ⁿ)
For detail, see "REGISTER SUPPLEMENTARY
DESCRIPTION (1)".
2
DIV2 ⁰
1
3
DIV3 ⁰
1
n=0
N1 : division value (multiply value)
Also, set the display frequency range by registers
DIVS0, DIVS1, DIVS2, RSEL0 and RSEL1(address 12016)
in accordance with the display frequency.
4
DIV4 ⁰
1
Any of this settings above is required only when
EXCK1 = 0, EXCK0 = 1 and EXCK1 = 1, EXCK0 = 1.
5
DIV5 ⁰
1
6
DIV6 ⁰
1
7
DIV7 ⁰
1
8
DIV8 ⁰
1
9
DIV9 ⁰
1
A DIV10 ⁰
1
B DIV11 ⁰
1
C DIVS0 ⁰
1
D DIVS1 ⁰
1
For setting, see "REGISTER SUPPLEMENTARY DESCRIPTION (2)". Sets display frequency range.
E DIVS2 ⁰
1
F TEST24 ⁰
1
Fix to "0".
Can not be used.
10 RSEL0 ⁰
1
11 RSEL1 ⁰
1
For setting, see "REGISTER SUPPLEMENTARY DESCRIPTION (2)". Sets display frequency range.
12 EXCK0 ⁰
1
13 EXCK1 ⁰
1
EXCK1
0
0
1
1
EXCK0
0
1
0
1
Display clock input
External clock mode 1
Internal clock mode
Can not be used.
External clock mode 2
Display clock setting
See "REGISTER SUPPLEMENTARY
DESCRIPTION (1)".
14
–
0 _{Fix to "0".}
1 _{Can not be used.}
15
–
0 _{Fix to "0".}
1 _{Can not be used.}
16
–
0 _{Fix to "0".}
1 _{Can not be used.}
17
–
0 _{Fix to "0".}
1 _{Can not be used.}
Note: The mark around the status value means the reset status by the "L" level is input to AC pin.
7