Kenwood DDX8017 Service Manual page 20

DDX8017/8027/8027Y
DDX8037/8047/8067
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
82 WE3/DQMUU
83 RDWR
84 VssQ
85 CS0
86 VccQ
87 CS2
88 CS3
89 CS4
90 CS5
91 CS6
92 NC
93 VssQ
94 NC
95 VccQ
96 RAS
97 NC
98 CAS
99 NC
100 CKE
101 SHINI
102 BACK
103 BREQ
104 R_WAIT
105 SH_DACK
106,107 NC
108 SHSTBY
109 AUDATA0
110 AUDATA1
111 AUDATA2
112 AUDATA3
113 AUDSYN.C
114 TDI
115 Vss
116 TCK
117 Vcc
118 TMS
119 TRST
120 TDO
121 ASEBRKAK
20
Module I/O
EXTRA O D31~D24 select signal /DQM (SDRAM)
EXTRA O Read/Write
Power supply -
EXTRA O Chip select 0 (ROM)
Power supply - I/O power supply
EXTRA O Chip select 2 (For DMA)
EXTRA O Chip select 3 (SDRAM)
EXTRA O Chip select 4 (SRAM)
EXTRA O Chip select 5 (GRiTT: VRAM)
EXTRA O Chip select 6 (GRiTT: Register)
O
Power supply -
O
Power supply - I/O power supply
EXTRA O Row address strobe
O
EXTRA O Colum address strobe
O
EXTRA O Clock enable
V850 I Resetting start identification
EXTRA O Bus acknowledge
EXTRA I Bus right request
GRITT I Hardware wait request
GRITT O DMA acknowledge
O
V850 O Power supply OFF permission
H-UDI I/O AUDATA input/output
H-UDI I/O AUDATA input/output
H-UDI I/O AUDATA input/output
H-UDI I/O AUDATA input/output
H-UDI O AUDSYNC output (H-UDI)
H-UDI I Data input (H-UDI)
Power supply -
H-UDI I Clock (H-UDI)
Power supply - Internal power supply
H-UDI I Mode select (H-UDI)
H-UDI I Reset (H-UDI)
H-UDI O Data output (H-UDI)
H-UDI O ASE break acknowledge (H-UDI)
Application
For ROM
3.3V
For SDRAM
For SRAM
For GRITT
For GRITT
3.3V
NC
H: Other than reset start, L: Reset start
NC
High level fixed.
H: Power supply OFF not permitted
L: Power supply OFF permitted
1.9V
Processing Operation Description