Service manual

CD-SW250DVD
8 – 8
56 SDATA2 I/O SDRAM data input/output (2)
SDRAM
I/F
57 SDATA1 I/O
SDRAM data input/output (1)
58 SDATA0 I/O SDRAM data input/output (0)
Power 59 DVDD33 - Digital power supply (3.3V)
SDRAM
I/F
60 SDATA15 I/O
SDRAM data input/output (15)
61 SDATA14 I/O SDRAM data input/output (14)
62 SDATA13 I/O SDRAM data input/output (13)
63 SDATA12 I/O SDRAM data input/output (12)
64 SDATA11 I/O SDRAM data input/output (11)
Power 65 DVDD18 - Digital power supply (1.8V)
SDRAM
I/F
66 SDATA10 I/O
SDRAM data input/output (10)
67 SDATA9 I/O SDRAM data input/output (9)
68 SDATA8 I/O SDRAM data input/output (8)
69 DQMH Oz SDRAM DQMH output
70 SDCLK Oz SDRAM clock output
Power 71 DVSS - Digital GND
SDRAM
I/F
72 SDADD11 Oz
SDRAM address output (11)
73 SDADD9 Oz SDRAM address output (9)
74 SDADD8 Oz SDRAM address output (8)
75 SDADD7 Oz SDRAM address output (7)
76 SDADD6 Oz SDRAM address output (6)
Power 77 DVDD18 - Digital power supply (1.8V)
SDRAM
I/F
78 SDADD5 Oz
SDRAM address output (5)
79 SDADD4 Oz SDRAM address output (4)
TEST 80 TEST0 I Test pin (0) *must be fixed to L
Audio
DAC
81 DAXCK O
SYS clock-output for audio DAC
82 DABCK O Bit clock-output for audio DAC
83 DALRCK O LR clock-output for audio DAC
Power 84 DVDD33 - Digital power supply (3.3V)
Audio
DAC
85 DAIEC O
Audio IEC output
86 ADATA0 O Audio data output (0)
87* ADATA1 O Audio data output (1)
88* ADATA2 O Audio data output (2)
89* ADATA3 O Audio data output (3)
Power 90 DVSS - Digital GND
General
port
91 RXD I/O
UART/general input/output
92 TXD I/O UART/general input/output
93 SI I/O Serial data input/general input/output
94 SO I/O Serial data input/general input/output
95 SCLK I/O Serial clock output/general input/output
96 ADACCSB I/O Audio DAC chip select/general input/output
Power 97 DVDD18 - Digital power supply (1.8V)
ARM 98 TCK I ARM JTAG
99 TDI I ARM JTAG
100* TDO O ARM JTAG
PLL 101 P1AVDD 18 - PLL1 analog power supply (1.8V)
102 P1AVSS - PLL1analog GND
103 P1DVSS - PLL1 digital GND
104 P1DVDD18 - PLL1 digital power supply (1.8V)
ARM 105 TRST I ARM JTAG
106 TMS I ARM JTAG
RESET 107 ZRESET Is System hardware reset input
Memory 108 RCSB I/O External bus chip-select (for program memory)
109 RWRB I/O External bus write-control
110 RRDB I/O External bus read-control
111 RADD16 Oz External bus address output 16
112 RDATA15 I/O External bus data input/output 15
Block Pin No. Terminal Name I/O Function