ViewSonic N2230w-2M Service Manual page 30

SDR_DQ[31:0] I/O SDRAM Data Bus 168-161, 157-150,
124-117, 114-107
SDR_RASZ Output SDRAM Row Address Strobe; active low 131
SDR_CASZ Output SDRAM Column Address Strobe; active low 132
SDR_WEZ Output SDRAM Write Enable 133
SDR_DQM[3:0] Output SDRAM Data Mask for Low Byte; active high 169, 149, 125, 106
SDR_MCLKO Output Master Clock Output to SDRAM 128
SDR1_CKE Output SDRAM1 Clock Enable 225
SDR1_AD[11:0] Output SDRAM1 Address Bus 224-213
SDR1_BA[1:0] Output SDRAM1 Bank Select 233, 232
SDR1_DQ[15:0] I/O SDRAM1 Data Bus 251-245, 243, 242,
240-234
SDR1_RASZ Output SDRAM1 Row Address Strobe; active low 231
SDR1_CASZ Output SDRAM1 Column Address Strobe; active low 230
SDR1_WEZ Output SDRAM1 Write Enable 227
SDR1_DQM[1:0] Output SDRAM1 Data Mask for Low Byte; active high 229, 228
SDR1_MCLKO Output Master Clock Output to SDRAM1 226
Audio Input/Output Interface
SIF0M Analog Input Reference Ground for SIF Audio Input Channel 0 50
SIF0P Analog Input SIF Audio Input Channel 0 51
SIF1P Analog Input SIF Audio Input Channel 1 53
SIF1M Analog Input Reference Ground for SIF Audio Input Channel 1 54
I2S_OUT_MCK Output Audio Master Clock Output 85
I2S_OUT_BCK Output Audio Bit Clock Output 86
I2S_OUT_WS Output Word Select Output; 4mA driving strength 87
I2S_OUT_SD Output Audio Serial Data Output; 4mA driving strength 88
SPDIFO Output S/PDIF Audio Output; 4mA driving strength 90
I2S_OUT_MUTE Output Audio Output Mute Control 89
I2S_IN_BCK Input Audio Bit Clock Input 81
I2S_IN_WS Input Word Select Input 82
I2S_IN_SD Input Audio Serial Data Input 83
SPDIFI Input S/PDIF Audio Input 84
AUVRM Analog Output Negative Reference Voltage for Audio ADC 64
AUVRP Analog Output Positive Reference Voltage for Audio ADC 65
AUVAG Analog Output Reference Voltage for Audio Common Mode 66
AUL0 Analog Input Audio Line Input Left Channel 0 68
AUR0 Analog Input Audio Line Input Right Channel 0 69
AUL1 Analog Input Audio Line Input Left Channel 1 70
AUR1 Analog Input Audio Line Input Right Channel 1 71
AUCOM Analog Input Reference Ground for Audio Line Input 72
AUL2 Analog Input Audio Line Input Left Channel 2 73
AUR2 Analog Input Audio Line Input Right Channel 2 74
AUL3 Analog Input Audio Line Input Left Channel 3 75
AUR3 Analog Input Audio Line Input Right Channel 3 76
AUOUTL1 Analog Output Main Audio Output Left Channel 0 77
AUOUTR1 Analog Output Main Audio Output Right Channel 0 78
AUOUTL0 Analog Output Main Audio Output Left Channel 0 79
AUOUTR0 Analog Output Main Audio Output Right Channel 0 80
Digital PWM Interface
Q1 Output DPWM Output 1 205
Q2 Output DPWM Output 2 206
FB1 Analog Input Input for 1st Feedback Loop 207
FB2 Analog Input Input for 2nd Feedback Loop 208
FAULTZ Analog Input Fault Detection (Low Enable) 209
VIN Analog Input System Input Voltage Detection 210
Misc. Interface
RESET Schmitt Trigger Input
w/ 5V-tolerant
Hardware Reset; active high 61
XIN Analog Input Crystal Oscillator Input 256
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ViewSonic Corporation N2230w-2M
Confidential - Do Not Copy