Sharp GX20, Руководство по обслуживанию

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GX20
6 – 21
CONFIDENTIAL
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
119 DB14 Input/Output Data bus
120 DB15 Input/Output Data bus
121 WAIT_B Output External wait signal (“Low” is active)
122 SUBFLMIN Input Driver FLM signal input for External display
123 SUBCKS Output Clock switching signal for External display
124 DA1 Input/Output Address input for chip select decode
125 BSPIXEL1 Input/Output External Bit Stream data bus
126 BSPIXEL4 Input/Output External Bit Stream data bus
127 GND – Logic ground
128 BSPIXEL5 Input/Output External Bit Stream data bus
129 SE_CK/PORT1 Output Control clock for 4-wire serial IF (default)
General-purpose PORT output
130 SE_LD2/PORT5 Output Load signal 2 for 4-wire serial IF
General-purpose PORT output (default)
131 BUFOFF_B Input Buffer Gated switching signal for I/O through current prevention
(High when Host_IF signal is activated)
132 VDDIO – IO Power supply 3.0 V (2.7 V~ 3.3 V)
133 DUMMY2 – Dummy 2
134* SE_LD3/PORT6 Output Load signal 3 for 4-wire serial IF
General-purpose PORT output (default)
135 VDDIO – IO Power supply 3.0 V (2.7 V~ 3.3 V)
136 SUBLPIN Input Driver LP input External display
137 BSPIXEL2 Input/Output External Bit Stream data bus
138 BSPIXEL3 Input/Output External Bit Stream data bus
139 VDDCORE – CORE Power supply 1.8 V (1.6 V~ 2.0 V)
140* SE_DI/PORT7 Input/Output 4-wire serial input (default)
General-purpose PORT output
141 SE_LD1/PORT2 Output Load signal 1 for 4-wire serial IF (default)
General-purpose PORT output
142 GND – Logic ground
143 VDDCORE – CORE Power supply 1.8 V (1.6 V~ 2.0 V)
144 DUMMY1 – Dummy 1Dummy 4
Pin No. Terminal name Input/Output Description of terminal