LG CE110 Service Manual page 29

3. Circuit Description
3.3.6 GPIO Map
In total 22 allowable resources, CE110 is using 16 resources except 3 resources dedicated to SIM
and Memory. CE110 GPIO(General Purpose Input/Output) Map, describing application, I/O state,
and enable level, is shown in below table 3.
I/O # Net Name
I/O (1) LCD_SUB_CS
I/O (2) CAM_PWON
I/O (4) USB_BOOT_SEL
I/O (6) Pull Up
I/O (8) BT_NRST
I/O (9) CHG_EN
I/O (12) CAM_RST
I/O (13) UART_RST
I/O (16) UART_CST
I/O (17) BOOT_SEL
I/O(19) CAM_PWR_EN
I/O(32) SPK_EN
I/O (42) VCAM18_EN
I/O(43) CHG_STAT
I/O (46) KEY_BL_EN
I/O (47) LCD_BL_EN
LGE Internal Use Only
Resource
I/O
State
I Sysboot
I Sysboot
I Sysboot
O GPIO
O GPIO
O GPIO
I GPIO
I Sysboot
I GPIO
I GPIO
O GPIO
I GPIO
O GPIO
I GPIO
O GPIO
<Table.3> GPIO Map
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Inactive Active
State State
HIGH LOW
LOW HIGH
LOW (Giant Plus) HIGH (Nanya)
HIGH LOW
LOW (LCD B/L Off) HIGH (LCD B/L On)
LOW HIGH
HIGH LOW
HIGH LOW
LOW HIGH
HIGH HIGH
LOW HiIGH
HIGH LOW
LOW HIGH
HIGH LOW
LOW HIGH
LOW HIGH
Only for training and service purposes