Sony DVP-LS755P, Руководство по обслуживанию

Страница: 65 / 94

5-2
Pin No. Pin Name I/O Function
68 XDACS O Audio DAC (2ch) chip select signal output
69 IFSDI I Serial data input from the IF CON
70 INT0 I Microcontroller Interrupt input (Not used)
71 IR I IR control signal input (Not used)
72 DVDD2 — Power supply (+2.5V)
73 RDX I Serial bus (data input)
74 TXD O Serial bus (data output)
75 UWR I/O Microcontroller write strobe (Not used)
76 URD I/O Microcontroller read strobe (Not used)
77 DVSS — Ground
78 to 81 RD7 to RD4 I/O SDRAM Data bus RD7 to RD4
82 DVDD2 — Power supply (+2.5V)
83 to 86 RD3 to RD0 I/O SDRAM Data bus RD3 to RD0
87 RWE O SDRAM write enable signal output
88 CAS O SDRAM column address strobe signal output
89 RAS O SDRAM row address strobe signal output
90 RCS O SDRAM chip select signal output
91 BA0 O SDRAM bank select 0 signal output
92 DVSS — Ground
93 to 96 RD15 to RD12 I/O SDRAM Data bus RD15 to RD12
97 DVDD3 — Power supply (+3.3V)
98 to 101 RD11 to RD8 I/O SDRAM Data bus RD11 to RD8
102 DVSS — Ground
103 CLK O SDRAM Clock output
104 CLE O SDRAM Clock enable output
105 to
107
RA11, RA9 and
RA8
O SDRAM Address bus RA11, RA9 and RA8
108 DMVDD3 — Power supply (+3.3V)
109 DMVSS — Ground
110 RA7 O Address bus RA7
111 DVDD3 — Power supply (+3.3V)
112 to
114
RA6 to RA4 O Address bus RA6 to RA4
115 DVSS — Ground
116 DQM1 O SDRAM Byte read /write mask signal 1 output
117 DQM0 O SDRAM Byte read /write mask signal 0 output
118 BA1 O SDRAM bank select 1 signal output
119 RA10 O Address bus RA10
120 DVDD2 — Power supply (+2.5V)
121 to
124
RA0 to RA3 O Address bus RA0 to RA3
125 DVSS — Ground
126 to
129
RD31 to RD28 I/O Data bus RD31 to RD28 (Not used)
130 DVDD3 — Power supply (+3.3V)
131 to
134
RD27 to RD24 I/O Data bus RD27 to RD24 (Not used)
135 DVSS — Ground
www. xiaoyu163. com
QQ 376315150
9 9
2
8 9
4 2
9 8
TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com