38
VF-16
SCSI I/F, MAIN PCB, VF-16/BSY
/ACK
/RES
/MSG
/SEL
/C/D
/REQ
/I/O
/ATN
/SEL
/BSY
/ACK
/ATN
/RES
/I/O
/C/D
/MSG
/REQ
/DBP
/DB0
/DB1
/DB2
/DB3
/DB4
/DB5
/DB6
/DB7
POWER
GA
GA
GA
GA
GA
GA
CPU
/IOCS16
/DASP
KEYPIN
CPU
J12
TO IDE HD
SCSI
DMACK
/DMA_RD
/DMA_WR
/SCSI_CS
/SCSI_DREQ
D+5
DGND
ATA[0..4]
DD[0..17]
/ATA_RST
/WR
/RD
/DMACK
DMARQ
INTRQ
/PDIAG
/CS1FX
/CS3FX
IORDY_I
SCSI_TMOUT
SC_INT7I
DMA_SEL
/ATA_RST
DGND
DD7
DD8
DD6
DD9
DD5
DD10
DD4
DD11
DD3
DD12
DD2
DD13
DD1
DD14
DD0
DD15
DGND
DMARQ
DGND
/DIOW
DGND
/DIOR
DGND
IORDY
/DMACK
DGND
INTRQ
ATA1
/PDIAG
ATA0
ATA2
/CS1FX
/CS3FX
DGND
DMA_RDB
DMA_WRB
SC_DREQB
20MHZ
/SCSI_CS
S7
S6
S4
S1
S8
S2
S0
S3
S[0..17]
S9
S10
S11
S12
S13
S14
S15
S16
S17
S8
S7
S6
S5
S4
S3
S2
S1
S0
S9
S17
S16
S15
S14
S13
S12
S11
S10
DD[0..17]
S5
ATA[0..4]
ATA0
ATA1
ATA2
ATA3
ATA4
ATAD0
ATAD1
ATAD2
ATAD3
ATAD4
ATAD0
ATAD1
ATAD2
ATAD3
ATAD4
ATAD[0..4]
SC_INT7I
DD[0..17]
S[0..17]
D+5
D+5
D+5
D+5
D+5
D+5
D+5
DGND
DGND
DGND
DGND
DGND
GND
DGND
DGND
WR
1
RD
2
VCC
3
VSS
4
CLK
5
RESET
6
INT
7
MODE
8
DBP
9
VSS
10
DB7
11
DB6
12
DB5
13
VCC
14
VSS
15
VSS
16
DB4
17
DB3
18
DB2
19
DB1
20
VSS
21
DB0
22
TEST1
23
TMOUT
24
(OPEN)
25
DMA WR
26
DMA RD
27
VCC
28
VSS
29
DMA 0
30
LDMDP
31
DMD 0
32
DMD 1
33
DMD 2
34
DMD 3
35
DMD 4
36
DMD 5
37
DMD 6
38
DMD 7
39
VSS
40
DMD 8
41
DMD 9
42
DMD10
43
DMD11
44
DMD12
45
DMD13
46
DMD14
47
DMD15
48
UDMDP
49
DMBHE
50
DMACK 51
DREQ 52
VCC 53
VSS 54
TP 55
(OPEN) 56
TEST2 57
I/O 58
VSS 59
REQ 60
C/D 61
SEL 62
MSG 63
VCC 64
VSS 65
VSS 66
RES 67
ACK 68
BSY 69
VSS 70
ATN 71
A0 72
A1 73
A2 74
A3 75
CS0 77
VCC 78
VSS 79
CS1 80
LDP 81
D0 82
D1 83
D2 84
D3 85
D4 86
D5 87
D6 88
D7 89
VSS 90
D8 91
D9 92
D10 93
D11 94
D12 95
D13 96
D14 97
D15 98
UDP 99
BHE 100
A4 76
U7
MB86604L
R19 4.7K
N.C.
1
EN
2
SCSI15
3
SCSI16
4
SCSI17
5
SCSI18
6
VSS
7
SCSI1
8
SCSI2
9SCSI9 18
SCSI10 19
SCSI11 20
SCSI12 21
SCSI13 22
SCSI14 23
VM 24
TSD 25
SCSI3
10
SCSI4
11
SCSI5
12
VCC
13 VCC 14
SCSI6 15
SCSI7 16
SCSI8 17
U8
BH9595FP
C37
0.01
C38
0.01
C39
0.01
C40
0.01
R20
NON
R21 100
R22 100
R23 100
R24 100
R25 100
C41
NON
C42
NON C43
NON C44
NON
C45
NON
R26
0
C47
0.1
C48
10/16
21 D1
EK13
R29
4.7K
C46
10/16
12
13
14
15
16
17
18
19
20
11
22
23
24
25
26
27
28
29
30
21
32
33
34
35
36
37
38
39
40
31
FC-40P
2
3
4
5
6
7
8
9
10
1
R28
NON
R27
0
DGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
J6
D-SUB 50P
/DBP
/DB0
/DB1
/DB2
/DB3
/DB4
/DB5
/DB6
/DB7
S9
S10
S11
S12
S13
S14
S16
S17
S15
/REQ
/MSG
/C/D
/I/O
/RES
/ATN
/ACK
/BSY
/SEL
S0
S1
S3
S4
S5
S6
S7
S8
S2
DGND
open
reserved
reserved
reserved
reserved
/TPWR
/TPWR
12
14
U17A
74VHCU04
34
U17B
74VHCU04
56
U17C
74VHCU04
98
U17D
74VHCU04
11 10
U17E
74VHCU04
13 12
U17F
74VHCU04
R53
220
R54
1M
R55 1M
C14
0.01
C15
33P C16
33P
C17
0.01
DD0
DD1
DD2
DD3
DD4
DD5
DD6
DD7
DD8
DD9
DD10
DD11
DD12
DD13
DD14
DD15
DD16
DD17
DD0
DD1
DD2
DD3
DD4
DD5
DD6
DD7
DD8
DD9
DD10
DD11
DD12
DD13
DD14
DD15
DD16
DD17
DGND
DGND
D+5
X4
20MHz
DGND
C902
0.01
12
14
U904A
74VHC04
DGND
D+5
1
23
14
U34A74VHC32
4
56
U34B 74VHC32
9
10 8
U34C74VHC32
12
13 11
U34D
74VHC32
/CS_IDE /CS_IDE
/CS_SCSI /WR
C923
0.01
DGND
D+5
R93
10k
R94
10k
DGND