46
MZ-NH900
Pin No.
Pin Name
I/O
Description
193
USB_WAKE
I
System wake up signal input by USB connect
194
A7CAL_SW
I/O
Current sense amplifier input, and short switch control output terminal Not used
195
SI0
I
Serial data input from the EEPROM
196
SO0
O
Serial data output to the EEPROM
197
SCK0
O
Serial clock output to the EEPROM
198
XGUM_ON
I
Rechargeable battery insert detection signal terminal
199
BEEP
O
Beep sound control signal output to the headphone amplifier
200
XOPT_CTL
O
Power supply on/off control signal output for the optical input jack
201
LAM_REQCHK
I
LAM power check terminal Not used
202
LAM_SPREQ
O
LAM force stop request signal output Not used
203
REC_LED
/ACCESS_LED
O
REC or Access LED drive signal output terminal Not used
204
MDVCC_CTL
O
Power supply control signal output for the OP modulation
205
VBUS_VB_CTL
O
USB power supply control signal output terminal
206
LAM_NAME
O
LAM name data request signal output terminal Not used
207
DRAM_ALONE
O
Self-refresh signal output for internal D-RAM
208
PF0
—
Not used
209
PF1/S0DO
O
Connect to the optical pick-up block
210
PF2/S1DO
O
Connect to the optical pick-up block
211
D_ENREG
O
Enable signal output to the headphone amplifier
212
XMUTE
/MUTE
O
Muting on/off control signal output terminal
213
SI1
I
Serial data input from the LCD module
214
SO1
O
Serial data output to the LCD module
215
SCK1
I/O
Serial data transfer clock signal input/output terminal with the LCD module
216
SLD_MON
I
Sled servo monitoring terminal
217
AOUT_SEL
O
Headphone/line output switching terminal Not used
218
YUZU_SLEEP
O
Chip enable output to the power control IC
219
FFCLR
O
Power on/off control signal output for FCRAM (internal RAM)
220
CHGI_CTL1
O
Charge current limiter control signal output at the time of AC adaptor use
“L”: limit off, “H”: limit on Not used
221
CHGI_CTL2
O
Charge current control signal output terminal “L”: low current charge
222
CHGI_CTL3
O
Charge current control signal output terminal “L”: low current charge
223
SLBUSY
I
Receive signal monitoring terminal for sled command
224
XTEST
I
Terminal for the test mode setting (normally open) “L”: test mode
225
XRF_RST
O
Reset signal output to the RF amplifier
226
VREC_SEL
O
VREC start-up timing control signal output terminal
227
XHOLD_SW
I
HOLD switch detection input terminal
228
T_MARK_SW
I
Track mark switch input terminal Not used
229
XRST2_DET
I
Reset signal input from the power control IC
230
CHGI_SEL
O
Charge/discharge control signal output for current sense amplifier Not used
231
RECP_MON
I
Laser power changeover signal monitoring terminal
232
SPDL_MON
I
Spindle servo monitoring terminal
233
XCS_PWR_IC
O
Chip select signal output to the power control IC
234
RXD
I
Not used
235
TXD
O
Not used
236
XCS_LCD
O
Chip select signal output to the LCD module
Содержание Walkman MZ-MH900
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