Yamaha MCX-1000 Service Manual page 36

MCX-1000
IC222 : HD64480F (MAIN P.C.B.)
Bus Bridge LSI
Pin No. Signal Name
16 SD_D14
17 SD_D15
18 SD_DQML
19 SD_DQMU
20 Vdd
21 SD_CLK
22 Vss
23 SD_/WE
24 SD_/CAS
25 SD_/RAS
26 SD_/CS1
27 Vdd
28 SD_A11
29 SD_A10
30 Vss
31 SD_A09
32 SD_A08
33 SD_A07
34 Vdd
35 SD_A06
36 SD_A05
37 Vss
38 SD_A04
39 SD_A03
40 SD_A02
41 SD_A01
42 SD_A00
43 AV_D00
44 AV_D01
45 AV_D02
46 AV_D03
47 Vdd
48 AV_D04
49 AV_D05
50 Vss
51 AV_D06
52 AV_D07
53 AV_D08
54 AV_D09
55 Vdd
56 AV_D10
57 AV_D11
58 Vss
59 AV_D12
60 AV_D13
61 AV_D14
62 AV_D15
63 AV_BEND0
64 AV_BEND1
36
I/O Active Function
I/O H SDRAM interface bus
I/O H SDRAM interface bus
O H SDRAM interface write mask
O H SDRAM interface write mask
+3.3V power supply
O H SDRAM interface clock
GND
O L SDRAM interface write enable
O L SDRAM interface Colum Address Strobe
O L SDRAM interface Raw Address Strobe
O L SDRAM interface chip select
+3.3V power supply
O H SDRAM interface address bus
O H SDRAM interface address bus
GND
O H SDRAM interface address bus
O H SDRAM interface address bus
O H SDRAM interface address bus
+3.3V power supply
O H SDRAM interface address bus
O H SDRAM interface address bus
GND
O H SDRAM interface address bus
O H SDRAM interface address bus
O H SDRAM interface address bus
O H SDRAM interface address bus
O H SDRAM interface address bus
I/O H AV extension bus data bus
I/O H AV extension bus data bus
I/O H AV extension bus data bus
I/O H AV extension bus data bus
+3.3V power supply
I/O H AV extension bus data bus
I/O H AV extension bus data bus
GND
I/O H AV extension bus data bus
I/O H AV extension bus data bus
I/O H AV extension bus data bus
I/O H AV extension bus data bus
+3.3V power supply
I/O H AV extension bus data bus
I/O H AV extension bus data bus
GND
I/O H AV extension bus data bus
I/O H AV extension bus data bus
I/O H AV extension bus data bus
I/O H AV extension bus data bus
O H AV extension bus forward block data complete
O H AV extension bus forward block data complete
Buffer form
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
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)
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)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL(P-up)
LV-TTL
LV-TTL