Renesas PCA7429G02 Informacje Techniczne Strona 69

  • Pobierz
  • Dodaj do moich podręczników
  • Drukuj
  • Strona
    / 145
  • Spis treści
  • BOOKMARKI
  • Oceniono. / 5. Na podstawie oceny klientów
Przeglądanie stron 68
66
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
M37272M6/M8–XXXSP/FP, M37272MA–XXXSP
M37272E8SP/FP, M37272EFSP
MITSUBISHI MICROCOMPUTERS
Rev. 1.3
The vertical display start position is determined by counting the hori-
zontal sync signal (H
SYNC). At this time, when VSYNC and HSYNC are
positive polarity (negative polarity), it starts to count the rising edge
(falling edge) of H
SYNC signal from after fixed cycle of rising edge
(falling edge) of V
SYNC signal. So interval from rising edge (falling
edge) of V
SYNC signal to rising edge (falling edge) of HSYNC signal
needs enough time (2 machine cycles or more) for avoiding jitter.
The polarity of H
SYNC and VSYNC signals can select with the I/O po-
larity control register (address 00D8
16).
Fig. 8.11.6 Supplement Explanation for Display Position
W
h
e
n
b
i
t
s
0
a
n
d
1
o
f
t
h
e
I
/
O
p
o
l
a
r
i
t
y
c
o
n
t
r
o
l
r
e
g
i
s
t
e
r
(
a
d
d
r
e
s
s
0
0
D
8
1
6)
a
r
e
s
e
t
t
o
1
(
n
e
g
a
t
i
v
e
p
o
l
a
r
i
t
y
)
V
S
Y
N
C
s
i
g
n
a
l
i
n
p
u
t
V
S
Y
N
C
c
o
n
t
r
o
l
s
i
g
n
a
l
i
n
m
i
c
r
o
c
o
m
p
u
t
e
r
0
.
2
5
t
o
0
.
5
0
[
µ
s
]
(
a
t
f
(
X
I
N)
=
8
M
H
z
)
P
e
r
i
o
d
o
f
c
o
u
n
t
i
n
g
H
S
Y
N
C
s
i
g
n
a
l
(
S
e
e
n
o
t
e
2
)
H
S
Y
N
C
s
i
g
n
a
l
i
n
p
u
t
N
o
t
c
o
u
n
t
12345
N
o
t
e
s
1
: T
h
e
v
e
r
t
i
c
a
l
p
o
s
i
t
i
o
n
i
s
d
e
t
e
r
m
i
n
e
d
b
y
c
o
u
n
t
i
n
g
f
a
l
l
i
n
g
e
d
g
e
o
f
H
S
Y
N
C
s
i
g
n
a
l
a
f
t
e
r
r
i
s
i
n
g
e
d
g
e
o
f
V
S
Y
N
C
c
o
n
t
r
o
l
s
i
g
n
a
l
i
n
t
h
e
m
i
c
r
o
c
o
m
p
u
t
e
r
.
2
: D
o
n
o
t
g
e
n
e
r
a
t
e
f
a
l
l
i
n
g
e
d
g
e
o
f
H
S
Y
N
C
s
i
g
n
a
l
n
e
a
r
r
i
s
i
n
g
e
d
g
e
o
f
V
S
Y
N
C
c
o
n
t
r
o
l
s
i
g
n
a
l
i
n
m
i
c
r
o
c
o
m
p
u
t
e
r
t
o
a
v
o
i
d
j
i
t
t
e
r
.
3
: T
h
e
p
u
l
s
e
w
i
d
t
h
o
f
V
S
Y
N
C
a
n
d
HS
Y
N
C
n
e
e
d
s
8
m
a
c
h
i
n
e
c
y
c
l
e
s
o
r
m
o
r
e
.
8
m
a
c
h
i
n
e
c
y
c
l
e
s
o
r
m
o
r
e
8
m
a
c
h
i
n
e
c
y
c
l
e
s
o
r
m
o
r
e
Przeglądanie stron 68
1 2 ... 64 65 66 67 68 69 70 71 72 73 74 ... 144 145

Komentarze do niniejszej Instrukcji

Brak uwag