67
Pin
Assi n ent Function
I O Port De nition
Function Description
I O
Nor
OFF
23
AC DET
I
igh(3.3V) 0
or 60 pulse
igh(3.3V) 0
or 60 pulse
Detection signal is for AC power.
24
COMP MUTE
O
igh(3.3V)
i- (0V)
Muting signal is for component video(YUV) output. igh is
for component video output is enabled. And low disable the
component video output.
2
RXD 0
I
igh(3.3V)
igh(3.3V)
Not use
26
TXD 0
O
igh(3.3V)
igh(3.3V)
Not use
27
EY IN B
I
igh(3.3V)
igh(3.3V)
A D key B input signal is from key board.
28
MCU IR IN
I
igh(3.3V)
igh(3.3V)
IR signal input. Low is to activate the IR receiving.
29
EY IN A
I
igh(3.3V)
igh(3.3V)
A D key A input signal is from key board.
30
MCU SET4
I
igh(3.3V)
or Low(0V)
igh(3.3V)
or Low(0V)
MCU setting pin by e ternail resistance. Default is high
31
Port 0.1 PIO
I
i-
i-
Not use
32
Standby key
I
igh(3.3V)
igh(3.3V)
Power key signal input terminal. Fall-edge is valid.
33
VSS
POWER
-
-
round Voltage 0V
34
VDD2
POWER
-
-
Internal Regulator Output 2. V
3
VDD
POWER
-
-
Supply Voltage 3.8V
36
RSTN
I
igh(3.3V)
igh(3.3V)
Reset Low Active
37
MCU LED CTRL A
O
igh(3.3V)
Low(0V)
Control signal for Power On LED indication with reen color.
For the blink condition:
1.) reen Led blink at 1sec intervals between power-on and
boot. The LED keep the light after the boot finishing.
2.) reen Led blink at 1sec intervals before the system becomes
Standby compeletely when the power key is pressed in
power on mode.
38
MCU LED CTRL B
O
Low(0V)
igh(3.3V)
Control signal for the Standby LED indication with red color. The
LED is light in standby mode. And turn off the LED in power on
mode.
39
LPF
D ED
O
igh(3.3V)
or Low(0V)
i- (0V)
This control signal is to set the low pass filter bandwidth for
Component output. igh is in 720P, 1080i output mode. And low
is in 480i 76i, 480P 76P output mode.
40
Port 2.7 PIO
-
i-
i-
Not use
41
FAN CTR
O
i-
i-
Not use
42
AMX POWER
O
i-
i-
Not use
43
Port 3.2 PIO
-
i-
i-
Not use
44
Port 3.3 PIO
-
i-
i-
Not use
B oc Di
r
1-CYCLE
80 1
CPU CORE
2 B SRAM
FLAS CONTROLLER
32 B
FLAS MEMORY
POWER
MANA ER
LVD LVR
RESET
IOSC
CLOC
SELECT
WDT
XOSC
RTC
INTERRUPT
PORT0 1 2 3 4
UART-0
PCA
ADC
TIMER0 1 2
IO MULTIPLEXER
VDD
VSS
RSTN
SPI
UART-1
I2C Master Slave
I2C Slave
VDD2
CEC EN INE
P As
PORT0 7:0
PORT1 7:0
PORT2 7:0
PORT3 7:0
PORT4 7:0
IO
MU
LT
IPL
E
XER
Analog
Comparators
Analog Switches
