-83-
131
WAIT
I
Wait state.
132
F_CE
O
Chip select for FLASH ROM.
133
NC
–
Not connected.
134
AT_CE
O
Chip enable pin for ATAPI I/F DATA BUS BUFFER IC.
135
SD_RAS
O
Not used.
136
VDD3_3
–
+3.3V power supply.
137
VSS
–
Ground.
138
NC
–
Not connected.
139
SD_CAS
O
Not used.
140
SD_CSO
O
Not used.
141 ~ 148
DATA0 ~ DATA7
I/O
Data bus I/O terminal.
149
VDD2_5
–
+2.5V power supply.
150
VSS
–
Ground.
151 ~ 158
DATA8 ~ DATA15
I/O
Data bus I/O terminal.
159
VDD3_3
–
+3.3V power supply.
160
VSS
–
Ground.
161 ~ 170
ADDR1 ~ ADDR10
O
Address bus output terminal.
171
VDD2_5
–
+2.5V power supply.
172
VSS
–
Ground.
173 ~ 183
ADDR11 ~ ADDR21
O
Address bus output terminal.
184
VDD3_3
–
+3.3V power supply.
185
VSS
–
Ground.
186
AT_RST
O
Host reset.
187
AT_RD
O
Drive I/O read.
188
AT_WR
O
Drive I/O write.
189
PIO0-3
I/O
Not used.
190
PIO0-4
I/O
Connected to pull-up resistor.
191
PIO0-5
I/O
Connected to ground.
I/O
Not used.
SCI clock out.
EEPROM serial data I/O.
EEPROM serial clock output.
Audio mute.
SCI data out.
+2.5V power supply.
199
VSS
ñ
Ground.
200
RXD
I
SCI data in.
201
BUSY
O
Front panel chip select.
202
TRIGIN
I
Trigger in for DCU. (Connected to pull-down resistor)
203
TRIGOUT
O
Trigger out for DCU. (Not used)
204 ~ 208
PIO2-0 ~ PIO2-4
I/O
Not used.
Pin No.
Pin Name
I/O
Description
IC DESCRIPTION -4/5 (IC, STi5580 -4/4)
XD-DV1
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