Yamaha PORTATONE PSR-9000 Service Manual page 23

SPC7212F0A(XV636B00) SCSI2 Interface Controller
PIN
NAME I/O
No.
1 LVDD - Power supply +3.3V
2 EXCLK I External clock input
3 VSS - Ground
4 OSCIN I Oscillator input
5 OSCOUT O Oscillator output
6 LVDD - Power supply +3.3V
7 CLKSEL0 I Input clock select
8 CLKSEL1 I System clock select
9 VC O Internal VCO control
10 XPLLPD I Pll power down input
11 LVDD - Power supply +3.3V
12 PLLCT0 I Pll control
13 PLLCT1 I Pll control
14 VSS - Ground
15 TESTEN I Test
16 DB0 I/O
17 DB1 I/O
Data bus
18 DB2 I/O
19 DB3 I/O
20 HVDD Power supply +5V
21 DB4 I/O
22 DB5 I/O
Data bus
23 DB6 I/O
24 DB7 I/O
25 VSS - Ground
26 LVDD - Power supply +3.3V
27 HVDD - Power supply +5V
28 AD0 I
29 AD1 I
30 AD2 I Address bus
31 AD3 I
32 AD4 I
33 VSS - Ground
34 XWR I Data write
35 XRD I Data read
36 XRESET I System reset input
37 XINT O Interrupt request
38 XCS I Chip select
39 HVDD - Power supply +5V
40 XPDACK I/O Port DMA acknowledge
41 XPRD I/O Port read
42 XPWR I/O Port write
43 PDREQ I/O Port DMA request
44 VSS - Ground
45 PD15 I/O
46 PD0 I/O
Port DMA data bus
47 PD14 I/O
48 PD1 I/O
49 HVDD - Power supply +5V
50 VSS - Ground
FUNCTION
PIN
NAME I/O
No.
51 LVDD - Power supply +3.3V
52 PD13 I/O
53 PD2 I/O
DMA data bus
54 PD12 I/O
55 PD3 I/O
56 VSS - Ground
57 PD11 I/O
58 PD4 I/O
DMA data bus
59 PD10 /IO
60 PD5 I/O
61 HVDD - Power supply +5V
62 PD9 I/O
63 PD6 I/O
DMA data bus
64 PD8 I/O
65 PD7 I/O
66 VSS - Ground
67 XSIO I/O SCSI I/O signal
68 XSREQ I/O SCSI REQ signal
69 VSS - Ground
70 XSCD I/O SCSI C/D signal
71 XSSEL I/O SCSI SEL signal
72 VSS - Ground
73 XSMSG I/O SCSI MSG signal
74 XSRST I/O SCSI RST signal
75 VSS - Ground
76 LVDD - Power supply +3.3V
77 XSACK I/O SCSI ACK signal
78 XSBSY I/O SCSI BSY signal
79 VSS - Ground
80 NC - N.C.
81 XSANT I/O SCSI ANT signal
82 XSDBP I/O SCSI data parity
83 VSS - Ground
84 TESTMON O Test monitor output
85 XSDB7 I/O
SCSI data bus
86 XSDB6 I/O
87 NC - N.C.
88 VSS - Ground
89 XSDB5 I/O
SCSI data bus
90 XSDB4 I/O
91 VSS - Ground
92 NC - N.C.
93 XSDB3 I/O
SCSI data bus
94 XSDB2 I/O
95 VSS - Ground
96 NC - N.C.
97 XSDB1 I/O
SCSI data bus
98 XSDB0 I/O
99 NC - N.C.
100 VSS - Ground
PSR-9000
DM: IC31
FUNCTION
23