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Control Port Functions
Serial terminal I/O port functions (PW878/PW868)
PIN NO.
PORT NO.
Signal Name
Description
I/O
U18
PORTA0
EXTINT1
PHY break
O
T16
PORTA2
RST_RJ45
RJ45 network processing port is reset, low level is reset
O
R16
PORTA3
MONIT_OUT
Switch VGA2 input/output status: 0_input, 1_output
O
T17
PORTA4
IRIS_CW
IRIS direction control
O
R17
PORTA5
P_KEY
On/Off button input port
I
T18
PORTA6
IRIS_RST
IRIS reset control
O
R18
PORTA7
IRIS_CLK
IRIS clock control
O
B22
PORTB0
OEFID_IN
LVDS input selection
O
F19
PORTB1
KEY_GPIO9
Android module control
O
D20
PORTB3
GPIO9
Android module control
O
A22
PORTB4
MCU_HPD0
HDMI hot plug control
O
M6
INR4
ON_2_5V
PWC878_2.5V voltage enabled, high level effective
O
M1
INR6
CXD_MUTE
Close input
O
M5
INR7
OUT_DET_EXT
AUDIO_OUT check
I
K4
INR9
LAMP_ECO
LAMP mode check
I
L2
ING2
TEMP_LED
Warning status LED
O
K3
ING3
POWER_LED_PW
Power indicator control
O
J4
ING4
READY_LED_PW
Ready indicator status
O
L1
ING5
LAMP_EN
Lamplighter enabled
O
K6
ING6
LAMP_S
Lamplighter control status
O
K2
ING7
USB_HUB_EN
USB HUB enabled
O
J5
ING9
MCU_HDMI
HDMI EDID write-in control (H:write. L: protection)
O
J1
INB2
ON_1_8V
PWC878 1.8V voltage enabled, high level effective
O
H4
INB3
ON_1_0V
PWC878 1.0V voltage enabled, high level effective
O
H6
INB4
FANC_SW
Group C fan voltage control, high level, voltage output
O
H3
INB5
ON_3_3V
PWC878 3.3V voltage enabled, high level effective
O
H2
INB6
ON_15V
CXA3828_15V voltage enabled, high level effective
O
H5
INB7
FAN_SW
Fan voltage control, high level, voltage output
O
G2
INB9
ON_16V
（5V power enabled, high level enabled
O
M3
INR0
P_OE
PT2830 control (L:MUTE, H:active)
O
L5
INR1
ROM_WP
IC1013 write protection control
O
K5
ING0
MOTOR_POWER
IRIS power supply enabled
O
J3
INB0
ON_5V
USB 5V control, high level effective
O
J2
INB1
ON_1.0V_PW
Control PW878's 1V voltage. H: active
O
U19
PORTI0
GPIOA0_4
External Android board control interface
O
V20
PORTI1
GPIOA0_9
External Android board control interface
O
W21
PORTI3
LAMP_EN_SEL
Point-to-signal control
O
U20
PORTI4
IRIS_DET
IRIS detection
I
W22
PORTI5
AUDIO_POWER
AUDIO power enabling port (H: ACTIVE)
O
V21
PORTI6
GPIOA0_5
Android board control interface
O
D12
PORTJ0
RC_SEL_FRONT
Enable front remote control
O
A13
PORTJ1
RC_SEL_BEHIND
Enable rear remote control
O
D11
PORTJ2
RST_GAM
Initialize CXD3551
O
B12
PORTJ3
TC_XCLR
Initialize CXDA3828
O
C11
PORTJ4
SD_MCU
Amplifier SD enabled (L: MUTE,H:ACTIVE)
O
E11
PORTJ5
VDDMNT
CXA3828 drive voltage switch control
O
F11
PORTJ6
PS
POWER OR VCOMRGB SW
O
A12
PORTJ7
IRIS_STBY
IRIS standby control
O
PW878 :
TX400/TX310/TW340/TW250
PW868 : TX210
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