LG 55LH80YD-AB Service Manual page 29

GPIO Configuration
GPIO IN/OUT
EEPROM_SCL
I2C Channel 1
EEPROM_SDA
SDA0
I2C Channel 2
SCL0
SDA1
I2C Channel 4
SCL1
FE_TUNER_SCL
I2C Channel 6
FE_TUNER_SDA
HDMI_TX_SEL HDMI TX Output Selection
WIHD_TX_INT Wireless TX - Baseband Chip Interrupt
HDMI_TX_INT HDMI TX Chip Interrupt
HDMI_TX_DDC_SEL HDMI TX DDC Selection for Jupiter
HDMI_TX_RESETb HDMI TX Chip Reset
HDMI_RX_INT Wireless TX - HDMI RX Chip Interrupt
HDMI_RX_RESETb Wireless TX - HDMI RX Chip Reset
5V_HDMI_1
5V_HDMI_2
HDMI RX Input - 5V Detection (Option)
5V_HDMI_3
5V_HDMI_4
AV1_SVIDEO_DET S-VIDEO Detection (will be deleted.)
AV1_CVBS_DET AV1 CVBS Input Detection
AV2_CVBS_DET AV2 CVBS Input Detection
COMP1_DET Component1 Input Detection
COMP2_DET Component2 Input Detection
DSUB_DET DSUB RGB Input Detection
USB_OCD USB Power Fault Status Output
USB_CTL USB Power Enable
VSB_CTRL VSB/QAM Demodulator +3.3V Enable
VSB_RESET VSB/QAM Demodulator Chip Reset
ISP_RXD
S6 Debug Port
ISP_TXD
VGA_EEPROM_WP DSUB E-DID ROM WP
PWM0 MCU Boot Strap
PWM1 PWM [0:1] =
(Not Used) 10 : Boot 51
(Not Used) 11 : Boot RISC
(Not Used)
(Not Used) WP# of Serial Flash Memory for Boot
Flash_WP_1
(Not Used) (Not Used)
(Not Used) (Not Used)
(Not Used) (Not Used)
(Not Used) (Not Used)
(Not Used) (Not Used)
(Not Used) (Not Used)
(Not Used) (Not Used)
(Not Used) (Not Used)
(Not Used) (Not Used)
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
BLOCK DIAGRAM_AV BOX
Description PIN NAME
UART2_TX/SCKM
UART2_RX/SDAM
DDCR_DA
DDCR_CK
GPIO60/PCM2_RESET/RX1
GPIO62/PCM2_CD_N/TX1
LHSYNC2/I2S_OUT_MUTE/RX1
GPIO79/LVSYNC2/TX1
GPIO44
GPIO88
GPIO139/GPIO_PM5/INT1
GPIO90/I2S_OUT_MUTE
GPIO91
GPIO97
GPIO98
GPIO140/GPIO_PM6/INT2
GPIO99
GPIO86/UART1_RX
GPIO87/UART1_TX
GPIO84/UART2_RX
SPDIF_IN
GPIO103/I2S_OUT_SD3
ET_TXD0
ET_TXD1
ET_RXD0
ET_TX_CLK
ET_RXD1
GPIO85/UART2_TX
GPIO67
ET_MDC
ET_MDIO
DDCA_CLK
DDCA_DA
ET_TX_EN
PWM0
PWM1
PWM2
PWM3
GPIO131/LDE/SPI_WPn1
GPIO130/LCK
GPIO132/LHSYNC/SPI_WPn
SAR0
SAR1
SAR2
SAR3
IR_IN
GPIO68
GPIO96
ET_COL
GPIO42/PCM2_CE_N
GPIO43/PCM2_IRQA_N
GPIO102
LVSYNC/GPIO133
GPIO_PM0/GPIO134
GPIO_PM1/GPIO135
GPIO_PM2/GPIO136
GPIO_PM3/GPIO137
GPIO_PM4/GPIO138
BALL
F8 Universal Asynchronous Transmitter 2 / I2c Master Serial Clock
D11 Universal Asynchronous Receiver 2 / I2c Master Serial Data
AB21 DDC Data for ROM
AC21 DDC Clock for ROM
AA18
General Purpose Input/Output; 4 mA Driving Strength
AA17
E7 Audio Output Mute Control
C6 General Purpose Input/Output; 4 mA Driving Strength/Universal Asynchronous Transmitter 1
AC11 General Purpose Input/Output; 4 mA Driving Strength
D10
General Purpose Input/Output; 4 mA Driving Strength
G6
D7 General Purpose Input/Output; 4 mA Driving Strength/Audio Output Mute Control
E11 General Purpose Input/Output; 4 mA Driving Strength
E8 General Purpose Input/Output; 4 mA Driving Strength
E10
General Purpose Input/Output; 4 mA Driving Strength
H6
D6 General Purpose Input/Output; 4 mA Driving Strength
A6 Universal Asynchronous Receiver 1/General Purpose Input/Output; 4 mA Driving Strength
B6 Universal Asynchronous Transmitter 1/General Purpose Input/Output; 4 mA Driving Strength
F9 Universal Asynchronous Receiver 2/General Purpose Input/Output; 4 mA Driving Strength
F11 S/PDIF Audio Input
D5 General Purpose Input/Output; 4 mA Driving Strength/Audio Serial Data Output
C10 Ethernet MAC Collision Data Bus 0
B11 Ethernet MAC Collision Data Bus 1
C11 Ethernet MAC Receive Data Bus 0
A9 Ethernet MAC Transmit Clock
C9 Ethernet MAC Receive Data Bus 1
F10 Universal Asynchronous Transmitter 2/General Purpose Input/Output; 4 mA Driving Strength
A7 Word Select Input/General Purpose Input/Output; 4 mA Driving Strength
A10 Ethernet MAC Management Data Clock
B9 Ethernet MAC Management Data Bus
J1 DDC Clock for Analog port
J2 DDC Data for Analog port
B10 Ethernet MAC Transmit Enable
AB13
AB12
Pulse Width Modulation Output; 4 mA Driving Strength
AD12
AA13
AC17
AB17 General Purpose Input/Output; 4 mA Driving Strength
AF11
A4
B4
SAR Low Speed ADC Input; General Purpose Input/Output
F4
E4
C4 IR Receiver Input
B8 Audio Bit Clock Input/General Purpose Input/Output; 4 mA Driving Strength
D9 General Purpose Input/Output; 4 mA Driving Strength
A11 Ethernet MAC Collision Detect
AF5
General Purpose Input/Output; 4 mA Driving Strength
AF10
C5 General Purpose Input/Output; 4 mA Driving Strength
AC18 General Purpose Input/Output; 4 mA Driving Strength
E5
F5
G5 General Purpose Input/Output; 4 mA Driving Strength
H5
F6
- 29 -
Saturn 6 Function
LGE Internal Use Only