Kenwood KVT-827DVD, Service Manual

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KVT-817DVD/827DVD/827DVDY
KVT-837DVD/847DVD/867DVD
Pin No. Pin Name Module I/O Application Processing Operation Description
82 WE3/DQMUU EXTRA O D31~D24 select signal /DQM (SDRAM)
83 RDWR EXTRA O Read/Write
84 VssQ Power supply -
85 CS0 EXTRA O Chip select 0 (ROM) For ROM
86 VccQ Power supply - I/O power supply 3.3V
87 CS2 EXTRA O Chip select 2 (For DMA)
88 CS3 EXTRA O Chip select 3 (SDRAM) For SDRAM
89 CS4 EXTRA O Chip select 4 (SRAM) For SRAM
90 CS5 EXTRA O Chip select 5 (GRiTT: VRAM) For GRITT
91 CS6 EXTRA O Chip select 6 (GRiTT: Register) For GRITT
92 NC O
93 VssQ Power supply -
94 NC O
95 VccQ Power supply - I/O power supply 3.3V
96 RAS EXTRA O Row address strobe
97 NC O NC
98 CAS EXTRA O Colum address strobe
99 NC O
100 CKE EXTRA O Clock enable
101 SHINI V850 I Resetting start identification H: Other than reset start, L: Reset start
102 BACK EXTRA O Bus acknowledge NC
103 BREQ EXTRA I Bus right request High level fixed.
104 R_WAIT GRITT I Hardware wait request
105 SH_DACK GRITT O DMA acknowledge
106,107 NC O
108 SHSTBY V850 O Power supply OFF permission
H: Power supply OFF not permitted
L: Power supply OFF permitted
109 AUDATA0 H-UDI I/O AUDATA input/output
110 AUDATA1 H-UDI I/O AUDATA input/output
111 AUDATA2 H-UDI I/O AUDATA input/output
112 AUDATA3 H-UDI I/O AUDATA input/output
113 AUDSYN.C H-UDI O AUDSYNC output (H-UDI)
114 TDI H-UDI I Data input (H-UDI)
115 Vss Power supply -
116 TCK H-UDI I Clock (H-UDI)
117 Vcc Power supply - Internal power supply 1.9V
118 TMS H-UDI I Mode select (H-UDI)
119 TRST H-UDI I Reset (H-UDI)
120 TDO H-UDI O Data output (H-UDI)
121 ASEBRKAK H-UDI O ASE break acknowledge (H-UDI)
MICROCOMPUTER’S TERMINAL DESCRIPTION
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