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15
MZ-E501
Pin No.
Pin Name
I/O Description
156, 157 TEST1, TEST0 I Terminal 1, 0 for the main test
158 EVA I EVA/FLASH chip discrimination terminal
159 OPR LED O Operation LED control (Not used in this set)
160 SSB DATA I/O Input/output of SSB serial data
161 SSB CLK — SSB serial clock
162 MCUVSS0
—
Ground (for the microcomputer block)
163 OPR_LED_R_PWM O Operation LED (R) control PWM
164 VL PWM —
PWM for the laser power supply voltage control
165 VC PWM — PWM for the system power supply voltage control
166
SPDL_AUX_PWM
O Spindle auxiliary control PWM
168
NC O Not used (open)
169 CLK SEL O Not used (open)
170
OPEN CLOSE
SW
I
Not used (open)
171 GND SW O Not used (open)
172 SET CODE0 O Set code 0
173 SET CODE1 O Set code 1
174 SET CODE2 O
Set code 2
176 MIFVDD1
—
Power supply (for the microcomputer I/F block)
177 MIFVSS1
—
Ground (for the microcomputer I/F block)
178 AOUT SEL O HP/LINE changeover signal output Not used (open)
179 SI0
I
Serial data input (CH0)
180 SO0 O
Serial data output (CH0)
181 SCK0 O
Serial clock signal output (CH0)
182 XGUM ON I
Not used (open)
183 BEEP O Beep sound output
191 OPT DET I Not used (open)
192 XJACK DET I Not used (open)
193 XMIC DET I Not used (open)
194, 195 PD S0, PD S1 O PD IC mode changeover 0, 1
196 MIFVDD2
—
Power supply (for the microcomputer I/F block)
197 to
199
MODE1 to 3 O
Not used (open)
200, 201 HD CON 1, 2 O Not used (open)
202 NC O Not used (open)
203 XCS ADA O Not used (open)
167
OPR_LED_G_PWM
O Operation LED (G) control PWM
175 SET CODE3 O
Set code 3
204 XPD ADA O Not used (open)
205 XCS LCD O Not used (open)
184 NC
—
Not used (open)
185 VD. SEL O
Not used (open)
186 XMUTE O
Not used (open)
187 LCD_RST_AUX O
Not used (open)
188,189 NC O Not used (open)
190 X PATCH I
Not used (connected to ground)