Read Sony NW-HD3 Service Manual online
44
NW-HD3
Pin No.
Pin Name
I/O
Description
144
HIORDY
I
Wait signal input from the hard disk drive unit
145
XHDMACK
O
DMA acknowledge signal output to the hard disk drive unit
146
HDMARQ
I
DMA request signal input from the hard disk drive unit
147
HINTREQ
I
Interrupt request signal input from the hard disk drive unit
148
XHRESET
O
Reset signal output to the hard disk drive unit
149
LRCK
O
L/R sampling clock signal output to the sub system controller
150
BCK
O
Bit clock signal output to the sub system controller
151
DATA
O
Transmission data output to the sub system controller
152
XRDE
O
Transmission enabling signal output to the sub system controller
153
FS256
I
Clock signal (11.2896 MHz) input from the main system controller
154
DTCK
I/O
Two-way TSB communication data bus with the remote commander
155
URESET
O
Reset signal output to the USB controller
156
USLEEP
O
Sleep signal output to the USB controller
157
HDD_PWR_CTL
O
Power supply on/off control signal output terminal for hard disk drive unit Not used
158
GSEN_PWR_CTL
O
Power supply on/off control signal output terminal for acceleration sensor
159
BACKLIT_PWR
O
Power supply on/off control signal output terminal for liquid crystal display back light
160
D33_MODE
O
Power supply on/off control signal output to the DC/DC converter for +3.3V power supply
161
RESET_LCD
O
Reset signal output to the liquid crystal display unit
162
XCHG_USB
O
USB charge on/off control signal output terminal
163
CHG_LIM
O
Limit current select signal output terminal of constant current charge
164
SYNCMODE
I
Sync/non-sync mode selection signal input terminal Not used
165
TDI
I
Data input terminal (for JTAG) Not used
166
TMS
I
Test mode control signal input terminal (for JTAG) Not used
167
TCK
I
Clock signal input terminal (for JTAG) Not used
168
TRST
I
Reset signal input terminal (for JTAG) Not used
169
TDO
O
Data output terminal (for JTAG) Not used
170 to 172 TEST0 to TEST2
I
Input terminal for the test mode setting
173
XICKSTP
I
Sleep signal input from the main system controller
174
NC
—
Not used
175 to 190
VDE33
—
Power supply terminal (+1.2V)
191 to 200
VDE33
—
Power supply terminal (+1.8V)
201 to 206
VDE33
—
Power supply terminal (+3.3V)
207 to 223
GND
—
Ground terminal
224 to 228
NC
—
Not used
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