36
MZ-R900
Pin No.
Pin Name
I/O
Description
91
DSPVDD2
—
Power supply terminal (for DSP block) (+1.5V)
92
DSPVSS1
—
Ground terminal (for DSP block)
93
SPCU
I
Spindle motor drive comparison signal input (U) from the motor driver (IC551)
94
SPCV
I
Spindle motor drive comparison signal input (V) from the motor driver (IC551)
95
SPCW
I
Spindle motor drive comparison signal input (W) from the motor driver (IC551)
96
SRDR
O
Sled servo drive PWM signal output (–) to the motor driver (IC551)
97
SFDR
O
Sled servo drive PWM signal output (+) to the motor driver (IC551)
98
SLDV
O
Sled motor drive signal output (V) to the motor driver (IC551)/ drive control signal
output (1–)
99
SLDW
O
Sled motor drive signal output (W) to the motor driver (IC551)/ drive control signal
output (2+)
100
SLCU
I
Spindle motor drive comparison signal input (U) from the motor driver (IC551)
101
SLCV
I
Spindle motor drive comparison signal input (V) from the motor driver (IC551)
102
SLCW
I
Spindle motor drive comparison signal input (W) from the motor driver (IC551)
103
DIFVDD1
—
Power supply terminal (for DSP I/F) (+2.3V)
104
DIFVSS1
—
Ground terminal (for DSP I/F)
105
EFMO
O
EFM encode data output for the record to the over write head drive (IC601)
106
MNT0
O
Internal DSP monitor output (0) terminal Not used (open)
107
MNT1
O
Internal DSP monitor output (1) terminal Not used (open)
108
MNT2
O
Internal DSP monitor output (2) terminal Not used (open)
109
MNT3
O
Internal DSP monitor output (3) terminal Not used (open)
110
SENSE
O
Internal DSP (SENS) monitor output terminal Not used (open)
111
TX
O
Record data output enable signal output monitor terminal of the internal DSP
Not used (open)
112
RECP
O
Laser power changeover signal output monitor terminal Not used (open)
113
DSPVDD3
—
Power supply terminal (for DSP block) (+1.5V)
114 to
117
NC
O
Output terminal for the external D-RAM Not used (open)
118
DRAMVSS0
—
Ground terminal (for the external D-RAM)
119
DRAMVDD0
—
Power supply terminal (for the external D-RAM) (+2.4V)
120 to
138
NC
O
Output terminal for the external D-RAM Not used (open)
139
DRAMVDD1
—
Power supply terminal (for the external D-RAM) (+2.4V)
140
DRAMVSS1
—
Ground terminal (for the external D-RAM)
141
TSB MST VDD
—
Power supply terminal (for TSB master communication) (+2.8V)
142
RMC DTCK
I/O
TSB serial data input/output with the remote commander attached headphone
143
TSB SLV VDD
—
Power supply terminal (for I/F to TSB slave communication) (+2.3V)
144
TSB SLVI
I
TSB slave signal input from the remote commander attached headphone
145
TSB SLVO
O
TSB slave signal output from the remote commander attached headphone
146
TDI
I
Data input terminal for JTAG Not used (open)
147
TMS
I
Test mode control input terminal for JTAG Not used (open)
148
TCK
I
Clock input terminal for JTAG Not used (open)
149
XTRST
I
Reset input terminal for JTAG Not used (open)
150
TDO
O
Data output terminal for JTAG Not used (open)
151
JTAGVDD
—
Power supply terminal (for JTAG) (+2.4V)
152
JTAGVSS
—
Ground terminal (for JTAG)
153
MCUVDD2
—
Power supply terminal (for the microcomputer block) (+1.5V)
154
MIFVDD0
—
Power supply terminal (for the microcomputer I/F block) (+2.3V)
155
MIFVSS0
—
Ground terminal (for the microcomputer I/F block)
Summary of Contents for Walkman MZ-R900
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