LG LX-U250A Service Manual page 32

• IC805
BLOCK DIAGRAM
Input
Button
• PIN CONFIGUARTION
GPIOA [7 ]
GPIOA [6 ]
NC
NC
NC
NC
gnd
vdd
LED1_out
NC
GPIOA [5 ]
GPIOA [4 ]
14.318MHz
PLL Clock Divider
RISC
Interrupt
Program
RAM
1
2
3
4
5
6
7
8
9
10
11
12
- 2-25 -
D+
USB
UHC
Transceirver
D-
I2V
Bit Stream
LED
USB
device
DAC
MP3
decoder
LED1~2
GPIOB [2 ]
NC
GPIOB [0 ]
sda
scl
NC
vdd
xtal2
xtal1
gnd
reset_b
NC