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5-2-3. BKDM-3010 (CPU-119 board)
IC1
CPU
IC2~IC4
24
ADDRESS
LATCH
ALE
A0~A3
X1
35MHz
3
14
OSC
RESET SW
RESET
A20~23
IC5
WAIT
RESET
38
47
CAST
IC
WR
27
44
WRN
FDD
45
26
RD
V
43
DDATAEN
ALE
46
ALE
40
CLR
FF
25
INT
53
BURST
SYSCLK
34
36
ACK
RDCENN
35
39
BKDM-3010 (CPU-119 board)
Block Diagram
32
DATA BUS
AD0~AD31
AD31
4
ADDRESS BUS
BE0~3
24
ADDRESS BUS
A20~23
IC10
IC6
MONITOR
MDEC
4
ROM
CS4
8
MEMORY
CS5
ADDRESS
DEC
20
CS
12
13
22
RD
1
IC24
Q1,3
IC7
+12VREG
WAIT
IC75
4
FF
AD31
10
RESET
CLR
FLUSH
11
IC26
RASV
18
RAS
13
RASC
WAIT
IC26
CASV
SIGNAL
14
CAS
GEN
4
CASC
16
ADH
5
17
ADL
15
3
19
1
2
BKDM-3010 (CPU-119 board)
IC52
IC8,9,11,12
BACKUP
FLASH
RAM
ROM
CS0~3
CS
20
CS
28
VB
RD
26
WR
RESET
VPP
4
CSO~3
IC15
DECM
DRAM
4
BE0~3
ADDRESS
DEC
4
8
A20~23
DEC
RD/WR
10
RD
11
WR
13
15
RESET
10SEL
1
SYSCLK
14
RASC
BUSGNT
BUSRQ
5-4
5-4
Block Diagram
32
DATA BUS D0~AD31
4
ADDRESS BUS BE0~3
24
ADDRESS BUS A0~23
IC16~23
DRAM
IC13,28
ADDRESS
MPX
10
10
10
A12~21
ADD0~9
A10-11
8
ADH
OE
RD/WR
RD/WR
RAS
CAS
IC14,28
ADDRESS
MPX
10
10
A2~11
X2
26MHz
ADL
OE
OSC
IC31 COM
3
IC33 VSQ
X2
IC29 DEV
10BIT COUNTER
3
10
17 18
TIMING
16
CONTROL
15
14
IC30
BUSRQ
2
BUS REQUEST
GEN
18
16
4
VIDEO
SEQUENCER
16
17
18
19
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