Yamaha MCX-1000 Service Manual page 37

IC222 : HD64480F (MAIN P.C.B.)
Bus Bridge LSI
Pin No. Signal Name
65 AV_BEND2
66 AV_BEND3
67 AV_/DRQ0
68 AV_/DRQ1
69 AV_/DRQ2
70 AV_/DRQ3
71 Vdd
72 AV_/RDY
73 Vss
74 AV_/DS
75 AV_A1
76 AV_A2
77 AV_A3
78 AV_R_/W
79 AV_/CS0
80 AV_/CS1
81 AV_GPO
82 Vdd
83 AV_/INT0
84 AV_/INT1
85 Vss
86 Vss
87 ID_DD00
88 ID_DD01
89 Vcc
90 ID_DD02
91 ID_DD03
92 ID_DD04
93 Vss
94 ID_DD05
95 ID_DD06
96 Vdd
97 ID_DD07
98 ID_DD08
99 ID_DD09
100 Vss
101 ID_DD10
102 ID_DD11
103 Vcc
104 ID_DD12
105 ID_DD13
106 Vcc
107 ID_DD14
108 ID_DD15
109 Vss
110 ID_DA0
111 ID_DA1
112 ID_DA2
113 ID0_INTR
I/O Active Function
O H AV extension bus forward block data complete
O H AV extension bus forward block data complete
I L AV extension bus forward data complete
I L AV extension bus forward data complete
I L AV extension bus forward data complete
I L AV extension bus forward data complete
+3.3V power supply
I L AV extension bus ready
GND
O L AV extension bus data strobe
O H AV extension bus address bus
O H AV extension bus address bus
O H AV extension bus address bus
O H AV extension bus read/write
O L AV extension bus chip select 0
O L AV extension bus chip select 1
O H AV extension bus general output port
+3.3V power supply
I L AV extension bus interrupted
I L AV extension bus interrupted
GND
GND
I/O H ATA interface data bus
I/O H ATA interface data bus
+5V POWER SUPPLY (FOR ATA-3 INTERFACE)
I/O H ATA interface data bus
I/O H ATA interface data bus
I/O H ATA interface data bus
GND
I/O H ATA interface data bus
I/O H ATA interface data bus
+3.3V power supply
I/O H ATA interface data bus
I/O H ATA interface data bus
I/O H ATA interface data bus
GND
I/O H ATA interface data bus
I/O H ATA interface data bus
+5V POWER SUPPLY (FOR ATA-3 INTERFACE)
I/O H ATA interface data bus
I/O H ATA interface data bus
+5V POWER SUPPLY (FOR ATA-3 INTERFACE)
I/O H ATA interface data bus
I/O H ATA interface data bus
GND
O H ATA interface address bus
O H ATA interface address bus
O H ATA interface address bus
I H ATA interface 0 interrupted request
MCX-1000
Buffer form
LV-TTL
LV-TTL
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL
LV-TTL
LV-TTL
LV-TTL
LV-TTL
LV-TTL
LV-TTL
LV-TTL
LV-TTL
LV-TTL(P-up)
LV-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
S-TTL(P-up)
TTL
TTL
TTL
S-TTL
37