ViewSonic VT2730-1M Service Manual page 37

I2S_OUT_MUTE/ UART1_RX Output Audio Output Mute Control /
Universal Asynchronous Receiver 1 C10
Pin Name Pin Type Function Pin
UART1_TX/ GPIO87 GPIO79/ UART1_TX I/O w/5V-tolerant Universal Asynchronous Transmitter 1 /
General Purpose Input/Output; 4mA driving strength General Purpose Input/Output; 4mA driving
strength / Universal Asynchronous Transmitter 1 C8 , D10
UART2_RX UART2_RX/ GPIO84 Input w/5V-tolerant I/O w/ 5V-tolerant Universal Asynchronous
Receiver 2 Universal Asynchronous Receiver 2 / General Purpose Input/Output; 4mA driving strength
D11, A9
UART2_TX UART2_TX/GPIO85 I/O w/5V-tolerant Universal Asynchronous Transmitter 2
Universal Asynchronous Transmitter 2 / General Purpose Input/Output; 4mA driving strength
A10 ,C9
Misc. Interface
Pin Name Pin Type Function Pin
DDCDA_DA I/O w/ 5V-tolerant HDCP Serial Bus Data / DDC Data of DVI/HDMI Port A G3
DDCDA_CK Input w/ 5V-tolerant HDCP Serial Bus Clock / DDC Clock of DVI/HDMI Port A G4
DDCDB_DA I/O w/ 5V-tolerant HDCP Serial Bus Data / DDC Data of DVI/HDMI Port B D3
DDCDB_CK Input w/ 5V-tolerant HDCP Serial Bus Clock / DDC Clock of DVI/HDMI Port B E3
DDCDC_DA I/O w/ 5V-tolerant HDCP Serial Bus Data / DDC Data of DVI/HDMI Port C R14
DDCDC_CK Input w/ 5V-tolerant HDCP Serial Bus Clock / DDC Clock of DVI/HDMI Port C R13
HOTPLUGA I/O w/ 5V-tolerant Hot-plug control for DVI/HDMI Port A F3
HOTPLUGB I/O w/ 5V-tolerant Hot-plug control for DVI/HDMI Port B C3
HOTPLUGC I/O w/ 5V-tolerant Hot-plug control for DVI/HDMI Port C P14
DDCA_DA I/O w/ 5V-tolerant DDC Data for Analog port F5
DDCA_CK I/O w/ 5V-tolerant DDC Clock for Analog port F6
DDCR_DA I/O w/ 5V-tolerant DDC Data for ROM U17
DDCR_CK I/O w/ 5V-tolerant DDC Clock for ROM T17
DDCR_DA2 I/O w/ 5V-tolerant DDC Data for ROM D11
DDCR_CK2 I/O w/ 5V-tolerant DDC Clock for ROM A10
XIN Crystal Oscillator Input Crystal Oscillator Input B3
XOUT Crystal Oscillator Output Crystal Oscillator Output A3
XTAL_OUT Output Clock Output for MStar Companion Chip R18
CEC I/O Consumer Electronics Control E4
HWRESET Schmitt Trigger Input w/ 5V-tolerant Hardware Reset; active high D5
Pin Name Pin Type Function Pin
AVDD_AU 3.3V Power Audio Power P6, R6
AVDD_LPLL 3.3V Power LPLL Power N15, P15
AVDD_MPLL 3.3V Power MPLL Power E7, E8
AVDD_MEMPLL 3.3V Power PLL Power H14
AVDD_33 3.3V Power ADC Power F7, F8, H6, H8, J8, K8, L8,
M8, N8
AVDD_DM 3.3V Power DM Power L13, M13
AVDD_USB 3.3V Power USB Power F14, G14
VDDP 3.3V Power Digital Input/Output Power F12, F13, F16, F17, J13, K13,
N9, N10
AVDD_MLINK 1.26V Power M-link Power M15
AVDD_PLLA_MLINK 1.26V Power M-link PLLA Power K15
AVDD_PLLB_MLINK 1.26V Power M-link PLLB Power L15
AVDD_DDR 1.8V Power DDR2 Power E15, E16, G15, G16, G17
VDDC 1.26V Power Digital Core Power E9, F9, F10, F11, H9, H10,
H11, H12, H13, N11, N12,
N13, P10, P11
GND Ground Ground A7, C5, D4, E13, E14, H15,
J9, J10, J11, J12, J15, K9,
K10, K11, K12, L9, L10, L11,
L12, M9, M10, M11, M12
No Connects
Pin Name Pin Type Function Pin
NC No connect. K18, R8, T11, W12, Y12
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