Sharp GX20, Руководство по обслуживанию

Страница: 139 / 168

GX20
6 – 7
CONFIDENTIAL
128 VMEM – Memory power supply 2.7V to 3.3V memory support
129 GND – Ground
130 VCC – Core power supply voltage 1.7V to 1.9V
131 USC[6] Input USC pin (CONT2)
132 VCC – Core power supply voltage 1.7V to 1.9V
133 USC[2] Output USC pin (TXD)
134 USC[4] Input USC pin (RTS)
135 DATA[7] Input/Output Processor data bus
136 DATA[6] Input/Output Processor data bus
137 GND – Ground
138 DATA[9] Input/Output Processor data bus
139 DATA[13] Input/Output Processor data bus
140 nROMCS1 Output Extenal ROM chip select
141 GPIO_42 Input/Output Display 1 chip select
142 CLKIN Input 13 MHz or 26 MHz crystal system clock input (Auto detect)
143 VSIM – SIM power supply 1.7V to 3.3V
144 GND – Ground
145 USC[3] Input USC pin (CD)
146 USC[1] Input USC pin (RXD)
147 GND – Ground
148 USC[0] Output USC pin (ADP)
149 DATA[10] Input/Output Processor data bus
150 DATA[8] Input/Output Processor data bus
151 nRD Output Processor read strobe
152 DATA[14] Input/Output Processor data bus
153 GND – Ground
154 nRAMCS2 Output Pseudo SRAM chip select
155* GPIO_44 Input/Output Flash 2 chip select
156 VSSUSB – USB ground
157 GPIO_47 Input/Output SIM Volt (SIM voltage select)
158 GPIO_20 Input/Output JTAG Test data input (TDI [I] DAI [1])
159 CLKON Output Oscillator power control signal (On/off)
160 VCC – Core power supply voltage 1.7V to 1.9V
161 GPO_18 Output TCK
162 GPO_21 Output SYNTHCLK
163 DATA[12] Input/Output Processor data bus
164 DATA[11] Input/Output Processor data bus
165 nWE Output Processor write strobe
166 VEXT – External device power supply 2.4V to 3.3V
167 GPO_11 Output TR_SW 4
168 GPO_20 Output SYNTHDATA
169 DATA[15] Input/Output Processor data bus
170 VMEM – Memory power supply 2.7V to 3.3V memory support
171* nADV Output nADV (Burst)
172 nGPCS1 Output Camera chip select
173 VMEM – Memory power supply 2.7V to 3.3V memory support
174* GPIO_45 Input/Output Flash 3 chip select
175 GPIO_46 Input/Output Extra chip select
176* DPLUS Input/Output USB D+
177 SIMCLK Output SIM Clock
178 JTAGEN Input JTAG Enable pull down
179 VEXT – External device power supply 2.4V to 3.3V
180 GPO_03 Output RXON1
181 GPO_04 Output OTH_PA_ Negblas
182 GPO_07 Output Camera power ON/OFF
183 GPO_16 Output GSM_On
184 GPO_17 Output DCS_On
185 nHWR/nUBS Output Processor high write strobe
186 GPO_19 Output SYNTHEN
187 nLWR/nLBS Output Processor low write strobe
188 nWAIT Input nWAIT (Burst/page)
189 nRESET Input System reset input
190 BURSTCLK Output Burst clock
191 nRAMCS1 Output Extenal RAM chip select
Pin No. Terminal name Input/Output Description of terminal