Sony HCD-BC150 - Dvd Home Theater System, Руководство по обслуживанию

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46
HCD-BC150/BC250
Ver 1.3
Pin No. Pin Name I/O Description
48 BA0 O SDRAM bank select 0 signal output
49 MCS0 O SDRAM chip select 0 signal output
50 MCS1 O Not used
51 MRAS O SDRAM row address strobe signal output
52 MCAS O SDRAM column address strobe signal output
53 MWE O SDRAM write enable signal output (“H” : read, “L” : write)
54 GND25 — Ground terminal (SDRAM I/O signal)
55 VDD25 — Power supply terminal (+3.3V) (SDRAM I/O signal)
56 MCLK O SDRAM Clock output
57 MD0 I/O SDRAM data
58 MD1 I/O SDRAM data
59 MD2 I/O SDRAM data
60 MD3 I/O SDRAM data
61 GND25 — Ground terminal (SDRAM I/O signal)
62 MDQM0 O Byte read /write mask signal 0 output
63 VDD25 — Power supply terminal (+3.3V) (SDRAM I/O signal)
64 MD4 I/O SDRAM data
65 MD5 I/O SDRAM data
66 MD6 I/O SDRAM data
67 MD7 I/O SDRAM data
68 MD8 I/O SDRAM data
69 MD9 I/O SDRAM data
70 MD10 I/O SDRAM data
71 MD11 I/O SDRAM data
72 GND25 — Ground terminal (SDRAM I/O signal)
73 MDQM1 O Byte read /write mask signal 1 output
74 VDD25 — Power supply terminal (+3.3V) (SDRAM I/O signal)
75 MD12 I/O SDRAM data
76 MD13 I/O SDRAM data
77 MD14 I/O SDRAM data
78 MD15 I/O SDRAM data
79 GND — Ground terminal (inside core)
80 VDD — Power supply terminal (+1.8V) (inside core)
81 MD16 I/O SDRAM data
82 MD17 I/O SDRAM data
83 MD18 I/O SDRAM data
84 MD19 I/O SDRAM data
85 GND25 — Ground terminal (SDRAM I/O signal)
86 MDQM2 O Byte read /write mask signal 2 output
87 VDD25 — Power supply terminal (+3.3V) (SDRAM I/O signal)
88 MD20 I/O SDRAM data
89 MD21 I/O SDRAM data
90 MD22 I/O SDRAM data
91 MD23 I/O SDRAM data
92 MD24 I/O SDRAM data
93 MD25 I/O SDRAM data
94 MD26 I/O SDRAM data