MITSUBISHI MICROCOMPUTERS
M35046-XXXSP/FP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
REGISTERS DESCRIPTION
(1) Address 120
16
Contents
DA
Register
Status
0
0
DIV0
1
0
1
DIV1
1
0
2
DIV2
1
0
3
DIV3
1
0
4
DIV4
1
0
5
DIV5
1
0
6
DIV6
1
0
7
DIV7
1
0
8
DIV8
1
0
9
DIV9
1
0
A
DIV10
1
0
B
DIVS0
1
0
C
DIVS1
1
0
D
VJT
1
0
It should be fixed to 鈥?鈥?
Alleviates continuous vertical jitters.
EXCK1 EXCK0 Display clock input
20 to 30MHz
0
0
Do not set
1
0
Do not set
0
1
20 to 80MHz
1
1
Remarks
Function
Set external clock frequency value of horizontal oscillation fre-
quency.
Set display frequency by frequency
value setting. Set N1 to be 鈥淣1=f
OSC
/
fH鈥?
f
OSC
(MHz) : External clock frequency
for TCK pin (=display fre-
quency)
f
H
(kHz) : Horizontal synchronous sig-
nal frequency for HOR pin
Set registers DIVS0, DIVS1 (address
120
16
), RSEL0 (address 121
16
) and
RSEL1 (address 122
16
) according to
external clock frequency.
For details, see (2) Setting display fre-
quencies under Register Supplemen-
tary Description.
Any of this settings above is reguired
only when EXCK1=1, EXCK0=1.
N1 =
危
(DIVn
脳
2
n
)
n=0
10
N1: frequency value
Horizontal synchronized signal
1H
External clock
Clock number (N1)
For details, see (2) Setting display frequencies under Register
Supplementary Description.
Set display frequency area.
E
EXCK0
See setting External Clock Input Mode
(to be input from the TCK terminal).
EXCK1 : address 123
16
1
5