KX-TDA0490XJ, KX-TDA0490X - Panasonic PBX Service Manual (repair manual). Page 28

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Pin No.
Pin Name
I/O
Description
163
VSS
Power
Internal GND (0V)
164
CTS2
I/O
SCIF data control (CTS)
165
TCLK
I/O
RTC/TMU clock
166
MD8/RTS2
I/O
Mode/SCIF data control (RTS)
167
MD7/TXD
I/O
Mode /Output port for SCI
168
SCK2/MRESET
I
SCIF clock/Manual reset
169
VDD
Power
Internal VDD
170
VSS
Power
Internal GND (0V)
171
A18
O
Address
172
A19
O
Address
173
A20
O
Address
174
A21
O
Address
175
A22
O
Address
176
A23
O
Address
177
VDDQ
Power
IO VDD (3.3V)
178
VSSQ
Power
IO GND (0V)
179
A24
O
Address
180
A25
O
Address
181
MD3/CE2A
I/O
Mode/PCMCIA-CE
182
MD4/CE2B
I/O
Mode/PCMCIA-CE
183
MD5/RAS2
I/O
Mode/RAS (DRAM)
184
DACK0
O
DMA acknowledge 0
185
DACK1
O
DMA acknowledge 1
186
A0
O
Address
187
VDDQ
Power
IO VDD (3.3V)
188
VSSQ
Power
IO GND (0V)
189
A1
O
Address
190
STATUS0
O
Status
191
STATUS0
O
Status
192
MD6/IOIS16
I
Mode/OIS16 (PCMCIA)
193
ASEBRK/BRKACK
I/O
ASE break/Acknowledge (H-UDI)
194
TDO
I
Test data Output (H-UDI)
195
VDD
Power
Internal VDD
196
VSS
Power
Internal GND (0V)
197
TMS
I
Test mode switch (H-UDI)
198
TCK
I
Test clock (H-UDI)
199
TDI
I
Test data input
200
TRST
I
Test reset
201
VDD-PLL2
Power
PLL2 VDD (3.3V)
202
VSS-PLL2
Power
PLL2 GND (0V)
203
VDD-PLL1
Power
PLL1 VDD (3.3V)
204
VSS-PLL1
Power
PLL1 GND (0V)
205
VDD-CPG
Power
CPG VDD (3.3V)
206
VSS-CPG
Power
CPG GND (0V)
207
XTAL
O
Crystal-oscillator
208
EXTAL
I
External clock/Crystal-oscillator
28
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