Yamaha MCX-1000 Service Manual page 35

IC222 : HD64480F (MAIN P.C.B.)
Bus Bridge LSI
ID_DD13 105
VCC 106
ID_DD14 107
ID_DD15 108
VSS 109
ID_DA0 110
ID_DA1 111
ID_DA2 112
ID0_INTR 113
VCC 114
ID1_INTR 115
ID0_/DMAK 116
ID1_/DMAK 117
ID0_/CS0 118
ID0_/CS1 119
120
ID0_/DMRQ
VSS 121
ID1_/DMRQ 122
ID_/IORDY 123
ID_DIOR 124
ID_DIOW 125
VCC 126
ID1_/CS0 127
ID1_/CS1 128
VSS 129
VSS 130
T 131
W 132
VDD 133
RESERVED 134
RESERVED 135
RESERVED 136
RESERVED 137
138
RESERVED
RESERVED 139
RESERVED 140
VSS 141
RESERVED 142
VDD 143
EX_/WAIT1 144
EX_/WAIT0 145
EX_/IRQ0 146
EX_/IRQ1 147
SH_/IRL0 148
SH_/IRL1 149
SH_/IRL2 150
SH_/IRL3 151
SH_/WAIT 152
SH_/RST 153
SH_/RD 154
SH_/RDWR 155
SH_/WE0 156
Pin No. Signal Name
1 Vdd
2 SD_D03
3 SD_D04
4 Vss
5 SD_D05
6 SD_D06
7 Vdd
8 SD_D07
9 SD_D08
10 Vss
11 SD_D09
12 SD_D10
13 SD_D11
14 SD_D12
15 SD_D13
HD64480F
I/O Active Function
+3.3V power supply
I/O H SDRAM interface bus
I/O H SDRAM interface bus
GND
I/O H SDRAM interface bus
I/O H SDRAM interface bus
+3.3V power supply
I/O H SDRAM interface bus
I/O H SDRAM interface bus
GND
I/O H SDRAM interface bus
I/O H SDRAM interface bus
I/O H SDRAM interface bus
I/O H SDRAM interface bus
I/O H SDRAM interface bus
MCX-1000
52 AV_D07
51 AV_D06
50 VSS
49 AV_D05
48 AV_D04
47 VDD
46 AV_D03
45 AV_D02
44 AV_D01
43 AV_D00
42 SD_A00
41 SD_A01
40 SD_A02
39 SD_A03
38 SD_A04
37
VSS
36 SD_A05
35 SD_A06
34 VDD
33 SD_A07
32 SD_A08
31 SD_A09
30 VSS
29 SD_A10
28 SD_A11
27 VDD
26 SD_/CS1
25 SD_/RAS
24 SD_/CAS
23 SD_/WE
22 VSS
21 SD_CLK
20 VDD
19 SD_DQMU
18 SD_DQML
17 SD_D15
16 SD_D14
15 SD_D13
14 SD_D12
13 SD_D11
12 SD_D10
11 SD_D09
10 VSS
9 SD_D08
8 SD_D07
7 VDD
6 SD_D06
5 SD_D05
4 VSS
3 SD_D04
2 SD_D03
1 VDD
Buffer form
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
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