Yamaha P-85 Service Manual page 20

P-85/P-85S
YMW767-VTZ (X6055A00) CPU (SWL01T)
PIN
NAME I/O
NO.
1 Vss -
2 I
TESTN
3 PLLBPN I
4 PLLV -
DD
5 CIN -
6 PLLVss -
7 TRSTN I
8 TMS I
9 TCK I
10 TDI I
11 TDO O
12 XI I
13 XO O
14 Vss -
15 V -
DD
16 ICN I
17 ECSN I
18 EWRN/PD5 I
19 ERDN/PD4 I
20 EA3/PD3 I
21 EA2/PD2 I
22 EA1/PD1 I
23 EA0/PD0 I
24 IOV -
DD
25 ED0/PC0 I/O
26 ED1/PC1 I/O
27 ED2/PC2 I/O
28 ED3/PC3 I/O
29 ED4/PC4 I/O
30 ED5/PC5 I/O
31 ED6/PC6 I/O
32 ED7/PC7 I/O
33 Vss -
34 IRQ0N/PH0 I
35 TxD0 O
36 RxD0 I
37 TxD1/PG2 O
38 RxD1/PH1 I
39 SCLK1/PH2 I
40 SDO O
41 SDI/PH3 I
42 BCLK O
43 WCLK/SYO O
44 O
SYSCLK/PG3
45 Vss -
46 V -
DD
47 IOV -
DD
48 PA0 I/O
49 PA1 I/O
50 PA2 I/O
51 PA3 I/O
52 PA4 I/O
53 PA5 I/O
54 PA6 I/O
55 PA7 I/O
56 Vss -
57 PB0 I/O
58 PB1 I/O
59 PB2 I/O
60 PB3 I/O
61 PB4 I/O
62 PB5 I/O
63 PB6 I/O
64 PB7/SYI I/O
20
FUNCTION
Ground
Input for TEST
PLL bypass select
PLL Power supply +2.5 V
Capacitor terminal for PLL
PLL Ground
JTAG input
JTAG output
Crystal oscillator
Crystal oscillator
Ground
Power supply +2.5 V
Hardware reset
CPU I/F chip select
CPU I/F write enable / Port D
CPU I/F read enable / Port D
CPU I/F address bus / Port D
Power supply +3.3 V
CPU I/F data bus / Port C
Ground
Interrupt input / Port H
Serial output
Serial input
Serial output / Port G
Serial input / Port H
External synchronization clock / Port H
Serial output
Serial input / Port H
Bit clock output
Word clock output
Clock output / Port G
Ground
Power supply +2.5 V
Power supply +3.3 V
I/O port A
Ground
I/O port B
PIN
NAME I/O
NO.
65 Vss - Ground
66 IOV - Power supply +3.3 V
DD
67 O External memory lower-byte enable / Port F
LBN/LWRN/PF6
68 O External memory upper-byte enable / Port F
UBN/UWRN/PF7
69 RDN/PF4 O External memory read enable / Port F
70 MD00 I/O
71 MD08 I/O
72 MD01 I/O
73 MD09 I/O External memory data bus
74 MD02 I/O
75 MD10 I/O
76 MD03 I/O
77 Vss - Ground
78 MD11 I/O
79 MD04 I/O
80 MD12 I/O
81 MD05 I/O
82 MD13 I/O External memory data bus
83 MD06 I/O
84 MD14 I/O
85 MD07 I/O
86 MD15 I/O
87 WRN/PF5 O
88 Vss - Ground
89 V - Power supply +2.5 V
DD
90 IOV - Power supply +3.3 V
DD
91 MA17 O
92 MA16 O
93 MA15 O
94 MA14 O
95 MA13 O
96 MA12 O
97 MA11 O External memory address bus
98 MA10 O
99 MA09 O
100 MA08 O
101 MA07 O
102 MA06 O
103 MA05 O
104 Vss - Ground
105 MA04 O
106 MA03 O
External memory address bus
107 MA02 O
108 MA01 O
109 CS0N/PG0 O External memory chip select / Port G
110 MA18 O
External memory address bus
111 MA19 O
112 MA21/PF1 O
External memory address bus / Port F
113 MA22/PF2 O
114 MA20 O External memory address bus
115 MA23/PF3 O External memory address bus / Port F
116 CSIN/PG1 O External memory chip select / Port G
117 MA00/PF0 O External memory address bus / Port F
118 Vss - Ground
119 V - Power supply +2.5 V
DD
120 IOV - Power supply +3.3 V
DD
121 CS2N/PE0 O
122 CS3N/PE1 O
123 O
CS4N/CASN/PE2
124 CS5N/PE3 O
External memory chip select / Port E
125 O
CS50RDN/PE4
126 O
CS51WRN/PE5
127 O
CS52WRN/PE6
128 O
CS53WRN/RASN/PE7
DM: IC101, IC201
FUNCTION