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I2C master. for example :search channels , save the customer setting.and the operation of IR and Keypad.
Also can receive information from the EEPROM (N5 AT24C32N)
EEPROM
0:Write Enable
1:Write Disable
N5
AT 24C32N-10SI-2.7
A0
1
GND
4
A2
3
SCL
6
VCC
8
A1
2
WP
7
SDA
5
R157
100R
R161
4.7k
R162
4.7k
R164
100R
C151
100n/25V
C177
10u/16V
R173
4.7k
R176
47R
R175
47R
33V_Normal
I2C-SDA 4,9,11,7
I2C-SCL 4,9,11,7
EEP_VCC
I2C-SCL
I2C-SDA
WP_EE
Address:0xA0
h)
The main control signal, as list:
Control Signal
net name
recommend
Remark
PWR-ON/OFF
Low level power on
PWR-ON/OFF pass V4
、
inverse phase
Standby signal
（
Power
control
）
PWR-ON
High level power on
ON_PBACK
High level power on
BL-control
BL-ON/OFF
Low level power on
Audio amplify mute
MUTE_5707
Low level mute
Backlight contral
ADJ-PWM2
Contral brightness of
backlight
Key “0”
KEYPAD-KEY0
Key
Key “1”
KEYPAD-KEY1
Key
Remote control signal
IR_IN
IR
