m37280eksp Mitsumi Electronics, Corp., m37280eksp Datasheet - Page 82

• Manufacturer Part Number: m37280eksp
• Description: Single-chip 8-bit Cmos Microcomputer With Closed Caption Decoder And On-screen Display Controller
• Manufacturer: Mitsumi Electronics, Corp.

Fig. 12.11.19 Relation Between Field Determination Flag and Display Font
82
Both H
When using the field determination flag, be sure to set bit 0 of the PWM mode register 1 (address 020A
V
V
control
signal
in microcom-
puter
Upper :
Lower :
V
V
signal in
micro-
computer
SYNC
SYNC
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
SYNC
SYNC
Note : The field determination flag changes at a rising edge of the V
x x x x x x x x
x x x x x x x x
x x x x x x x x
1
x x x x x x x x
x x x x x x x x
2
3
4
x x x x x x x x
x x x x x x x x
5
6
x x x x x x x x
7
8
x x x x x x x x
9
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
H
SYNC
SYNC
1
and
signal
control
the microcomputer.
2
signal and V
3
4
(n–1) field
(Odd-numbered)
(n) field
(Even-numbered)
(n+1) field
(Odd-numbered)
CC mode · CDOSD mode
5
6
SYNC
7
signal are negative-polarity input
8
9
10
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
11
T1
T2
T3
OSD ROM font configuration diagram
12
13
14
15
M37280MF–XXXSP, M37280MK–XXXSP
0.25 to 0.50[ s] at
f(X
16
IN
) =8 MHz
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x x x x x x x
x x
SYNC
1
Even
Field
When the display dot line selection bit is “0,”
the “
“
I/O polarity control register can be read as the
field determination flag : “1” is read at odd field,
“0” is read at even field.
Odd
Odd
2
control signal (negative-polarity input) in
3
” font is displayed at odd field. Bit 7 of the
4
” font is displayed at even field, the
Field
determination
flag(Note)
0 (T2 > T1)
1 (T3 < T2)
5
6
and ON-SCREEN DISPLAY CONTROLLER
7
OSDS mode
8
MITSUBISHI MICROCOMPUTERS
9
Display dot line
selection bit
10
16
11
0
1
0
1
) to “0.”
12
13
M37280EKSP
14
15
Display dot line
16
Dot line 1
Dot line 0
Dot line 0
Dot line 1
x x
Rev. 1.0