Aiwa AV-D77 Service Manual page 50

Pin No. Pin Name
60 VSS
61 RAMA4
62 /IC
63 TEST
64 RAMA3
65 /CSB
66 /CS
67 SO
68 SI
69 SCK
70 RAMA2
71 VDD1
72~79 RAMD0~7
80 VSS
81 VDD2
82 SDWCK0
83 SDBCK0
84 SDIA0
85 SDIA1
86,87 RAMA1,0
88 RAMWEN
89 RAMOEN
90 VSS
91 VDD2
92~99 IPORT7~0
100 VSS
I/O
-
Ground.
O External SRAM Interface address 4. (Not used)
I Initial clear.
- Test terminal (Not used).
O External SRAM Interface address 3. (Not used)
I Sub DSP Chip select.
I Microprocessor interface Chip select.
O Microprocessor interface Serial data output.
I Microprocessor interface / Sub DSP Serial data input.
I Microprocessor interface / Sub DSP clock input.
O External SRAM Interface address 2. (Not used)
- +5V power supply (for I/Os).
External SRAM Interface data (STREAM0~7 output when External SRAM is not in use).
I/O
(Not used)
-
Ground.
- +3.3V power supply (for core logic).
I Word clock input for SDIA, SDOA, SDIB, SDOB.
I Bit clock input for SDIA, SDOA, SDIB, SDOB.
I AC-3 bitstream (or PCM ) data input for Main DSP.
I AC-3 bitstream (or PCM ) data input for Main DSP.
O External SRAM Interface address 1, 0. (Not used)
O External SRAM Interface / WE. (Not used)
O External SRAM Interface / OE. (Not used)
- Ground.
- +3.3V power supply (for core logic).
I Input port for general purpose.
- Ground.
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Description