S1R72104F00A100 (Xy625A00) Scsi Control - Yamaha AW2816 Service Manual

AW2816

S1R72104F00A100 (XY625A00) SCSI Control

PIN
NAME I/O
NO.
1 LV
DD
2 EXCLK I
3 Vss
4 OSCIN I
5 OSCOUT O
6 LV
DD
7 CLKSEL0 I
8 CLKSEL1 I
9 VC O
10 I
XPLLPD
11 PLLCT0 I
12 PLLCT1 I
13 TESTMON O
14 TESTEN I
15 DB0 I/O
16 DB1 I/O
17 DB2 I/O
18 DB3 I/O
19 HV
DD
20 DB4 I/O
21 DB5 I/O
22 DB6 I/O
23 I/O
DB7
24 AD0 I
25 Vss
26 LV
DD
27 I
AD1
28 AD2 I
29 AD3 I
30 AD4 I
31 XWR I
32 XRD I
33 XRESET I
34 XINT O
35 I
XCS
36 Vss
37 XPDACK I/O
38 XPRD I/O
39 XPWR I/O
40 I/O
PDREQ
41 PD15 I/O
42 PD0 I/O
43 PD14 I/O
44 PD1 I/O
45 HV
DD
46 PD13 I/O
47 PD2 I/O
48 PD12 I/O
49 PD3 I/O
50 Vss
44
FUNCTION
Power supply +3.3V
External clock input
Ground
Oscillator input
Oscillator output
Power supply +3.3V
Input clock select
System clock select
Internal VCO control
PLL power down input



PLL control


Test monitor output
Test input





Data bus




Power supply +5V





Data bus




Address bus
Ground
Power supply +3.3V





Address bus




Data write (Low active)
Data read (Low active)
System reset (Low active)
Interrupt request (Low active)
Chip select (Low active)
Ground
Port DMA acknowledge
Port read (Low active)
Port wright (Low active)
Port DMA request (Low active)





Port DMA data bus




Power supply +5v





Port DMA data bus




Ground
PIN
NAME I/O
NO.
51 LV
DD
52 PD11 I/O
53 PD4 I/O
54 PD10 I/O
55 PD5 I/O
56 PD9 I/O
57 PD6 I/O
58 PD8 I/O
59 PD7 I/O
60 Vss
61 XSIO I/O
62 HV
DD
63 XSREQ I/O
64 Vss
65 XSCD I/O
66 XSSEL I/O
67 Vss
68 XSMSG I/O
69 XSRST I/O
70 Vss
71 XSACK I/O
72 HV
DD
73 XSBSY I/O
74 NC
75 Vss
76 HVDD
77 XSATN I/O
78 Vss
79 XSDBP I/O
80 HV
DD
81 XSDB7 I/O
82 Vss
83 NC
84 XSDB6 I/O
85 HV
DD
86 XSDB5 I/O
87 Vss
88 XSDB4 I/O
89 HV
DD
90 XSDB3 I/O
91 Vss
92 XSDB2 I/O
93 NC
94 HV
DD
95 XSDB1 I/O
96 Vss
97 XSDB0 I/O
98 HV
DD
99 NC
100 Vss
MAIN: IC719
FUNCTION
Power supply +3.3V









Port DMA data bus








Ground
SCSI I/O signal (Low active)
Power supply +5V
SCSI REQ signal (Low active)
Ground
SCSI C/D signal (Low active)
SCSI SEL signal (Low active)
Ground
SCSI MSG signal (Low active)
SCSI RST signal (Low active)
Ground
SCSI ACK signal (Low active)
Power supply +5V
SCSI BSY signal (Low active)
Not used
Ground
Power supply +5V
SCSI ATN signal (Low active)
Ground
SCSI data parity (Low active)
Power supply +5V
SCSI data bus (Low active)
Ground
Not used
SCSI data bus (Low active)
Power supply +5V
SCSI data bus (Low active)
Ground
SCSI data bus (Low active)
Power supply +5V
SCSI data bus (Low active)
Ground
SCSI data bus (Low active)
Not used
Power supply +5V
SCSI data bus (Low active)
Ground
SCSI data bus (Low active)
Power supply +5V
Not used
Ground