LG KM710 Service Manual page 27

3. HW Circuit Description
3.3.6 GPIO Map
In total 39 allowable resources, KM710d is using 36 resources except 3 resources dedicated to
PTCRB and SD card. KM710d GPIO(General Purpose Input/Output) Map, describing application, I/O
state, and enable level, is shown in below table 3.
GPIO Pin Pin No
GPIO_00 M15 MM_RESET
GPIO_01 W21 MAIN_SUB_SEL
GPIO_02 J15
GPIO_03 B8
GPIO_04 U19 USB_BOOT_SEL
GPIO_05 R18
GPIO_06 V20
GPIO_07 K14
GPIO_08 W17 _EOC
GPIO_09 V16
GPIO_10 Y16
GPIO_11 R9
GPIO_12 G9
GPIO_13 Y18
GPIO_16 V17
GPIO_17 H10 HOOK_EN
GPIO_18 V19
GPIO_19 AA12 SPK_EN
GPIO_20 V10
GPIO_21 AA10 DP_PWON
GPIO_22 W10 MLCD_RST
GPIO_23 P10
GPIO_26 D17 MM_LDO_EN
GPIO_27 V18
GPIO_28 E18
GPIO_29 C18 LEDI2C_SCL
GPIO_30 Y8
GPIO_32 G12 TOUCH_INT
GPIO_33 P13
GPIO_36 AA13 -
GPIO_43 Y12
GPIO_45 AA7 SD_INSERT_BB
GPIO_46 B12
GPIO_47 G13 USB_DETECT_BB
GPIO_48 W9
GPIO_57 R10
GPIO_59 D19 LEDI2C_SDA
GPIO_60 B18
GPIO_63 V21
LGE Internal Use Only
NET Name I/O
BT_NRST
HALL1_OUT
MM_INT
MM_1V2_EN
BPEN O telechips BP enable
CHG_EN
GATED_IOEN
WHEEL_RST
HS_PATH_SEL
TOUCH_I2C_SCL I/O Wheel Touch key control
FM_INT
SLCD_RST
DAC_EN
JACK_DETECT
HOOK_DETECT
HALL_PDN
I/O Wheel LED control
LCD_BL_ENM
TFLASH_DETECT
CHG_EN
.
HALL2_OUT
TOUCH_I2C_SDA I/O Wheel Touch key control
- -
SLIDE
I/O Wheel LED control
LCD_BL_ENS
FM_RESET
<Table.3> GPIO Map
Comment
O telechips reset
O Main/Sub LCD select, sub lcd cs pin
O BT reset & SW : 0=UART, 1=Reset & BT UART
I Wheel Hall sw 1
I USB booting mode
I Telechips Interrupt
O DCDC 1.2V select for telechips
I End Of Charge
O charger enable
O telechips IO enable
O Wheel chip reset
O Headset path select
I FM radio Interrupt
O Hook detect enable
O Sub LCD Reset
O speaker enable
O DA&AMP power LDO enable(2.8V)
O LCD/Wheel power LDO enable(2.8V)
O Main LCD reset
Jack Detect (DBB 내 부 pull up)
I
O Telechips USB/Core 1.5V LDO enable
I Hook dedect
O Wheel HALL IC Power down
O LCD backlight main enable
I Wheel Touch key Interrupt
I SD card detect, PTCRB Test(TR NA)
Charger Enable
O - eel Hall effect IC powerdown --> Not Used
O Wheel Hall sw 2
O Indicate SD card insert to telechips
O Indicate USB detect to telechips
UART RX pin이 GPIO로 쓰 여 사 용 불 가
I Slide detect
O LCD backlight sub enable
O FM radio reset
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Only for training and service purposes