LG F1200 Service Manual page 31

3. TECHNICAL BRIEF
(12) GPIO Map
In total 16 allowable resources, F1200 is using 16 full resources. G7200 GPIO (General
Purpose Input/Output) Map, describing application, I/O state, and enable level, is shown in
below table 8.
I/O #
I/O (0)
I/O (1)
I/O (2)
I/O (3)
I/O (4)
I/O (5)
I/O (6)
I/O (7)
I/O (8)
I/O (9)
I/O (10)
I/O (11)
I/O (12)
I/O (13)
I/O (14)
I/O (15)
Application
KEYBACKLIGHT
USB_EN
LCD_BACKLIGHT
F_KEY_BL
MIDI_EN
HP_AMP_EN
SPK_EN
AD
FOLDER
LCD_ID
HOOK_DET
JACK_DET
HANDSFREE
LCD_RST
C_INT
C_HOLD
I/O Resource
State
O GPIO
O GPIO
O GPIO
O GPIO
O GPIO
O GPIO
O GPIO
O GPIO
I GPIO
I GPIO
I GPIO
I GPIO
I GPIO
O GPIO
I GPIO
O GPIO
Table 8. GPIO Map
- 30 -
Inactive Active
State State
Low High
Low (Serial) High (USB)
Low High
Low High
Low (MIDI) High (Headset)
Low High
Low High
- -
Low (Open) High (Closed)
- -
High Low
High Low
Low High
Low High
- -
High Low