Akai PD-X3780SR, Руководство по обслуживанию

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20
Self refresh logic
& timer
Internal Row
counter
S
ta
te
M
a
c
h
in
e
DQ 0
DQ 1
DQ14
DQ15
I/O
B
u
ffe
r &
L
o
g
ic
S
e
n
s
e
A
M
P
&
I/
O
G
a
te
1Mx 16 Bank 0
1Mx 16 Bank 1
1Mx 16 Bank 2
1Mx 16 Bank 3
Memory
Cell
Array
Y decoders
X
d
e
c
o
d
e
rs
X
d
e
c
o
d
e
rs
X
d
e
c
o
d
e
rs
X
d
e
c
o
d
e
rs
Row
Pre
Decoders
Column
Pre
Decoders
Column Add
Counter
Burat
Counter
Mode Registers
Data Out Control
Pipe Line Control
CAS Latenoy
Address
Registers
A
d
d
re
s
s
b
u
ffe
rs
Column
Active
Bank Select
Row active
refresh
A0
A1
A11
BA0
BA1
CLK
CKE
CS
RAS
CAS
WE
UDQM
LDQM
IC402 HY57V641620HG
IC801 SPL10A2-203A-C
8-BIT
RISC
PROCESSOR
ROSC GEN
TIME BASE
&
INTERRUPT
LOGIC
7Kx8
ROM
96x8
SRAM
ONE
12-BIT
AUTO
RELOAD
TIMER
32 SEGMENTS x 4 COMMANDS LCD DRIVER
12
I/O
P
O
R
T
DA
/
TONE
ROSC X32I
X32O
IOAB1 - 0
(I/O)
IOCD3 - 0
(I/O)
IOEF5 - 0
(INPUT)
AUD
SEG31 - 0
COM3 - 0