Philips 32PFL3403D/85 Service Manual page 86

EN 86 9. LC8.1U LA
The following GPIO table can be used for quick reference:
Table 9-1 GPIO Reference Table
Device Pin Symbol
MT5382 C22 ALIN
MT5382 A23 AOBCK
MT5382 B23 AOLRCK
MT5382 A24 AOMCLK
MT5382 D22 AOSDATA0
MT5382 C23 AOSDATA1
MT5382 B24 AOSDATA2
MT5382 A25 AOSDATA3
MT5382 B25 AOSDATA4
MT5382 Y5 GPIO6
MT5382 AA4 GPIO7
MT5382 C19 GPIO8
MT5382 A20 GPIO9
MT5382 B19 GPIO10
MT5382 B18 GPIO11
MT5382 A18 GPIO12
MT5382 B17 GPIO13
MT5382 AE1 OWRP2
MT5382 U23 VCXO
MT5382 C11 PAALE
MT5382 D11 PACLE
MT5382 E11 PARB
MT5382 B9 PDD2
MT5382 E10 PDD3
MT5382 D10 PDD4
MT5382 C10 PDD5
MT5382 B10 PDD6
MT5382 A10 PDD7
MT5382 E9 POWE
MT5382 D25 PWM0
MT5382 E20 PWM1
MT5382 D20 PWM2
MT5382 AB14 OPCTRL0
MT5382 AC14 OPCTRL1
MT5382 AD7 OPCTRL2
MT5382 AC7 OPCTRL3
MT5382 AD14 OPCTRL4
MT5382 AC13 OPCTRL5
MT5382 E19 ORIO
WT61P7 pin 9 GPIOB2
WT61P7 pin 10 GPIOB1
WT61P7 pin 19 GPIOC0
WT61P7 pin 20 DSDA1
WT61P7 pin 21 DSCL1
WT61P7 pin 24 GPIOA3
WT61P7 pin 25 GPIOA2
WT61P7 pin 26 GPIOA1
WT61P7 pin 35 GPIOD0
WT61P7 pin 41 GPIOE2
This section details the control signal descriptions. The control
signals are classified by their respective functions as follows:
• System
• Audio
• Display
• HDMI
• USB.
9.9.1 System Control Signals
8280_DETECT
The 8280_DETECT signal is used to inform the MT5382 of the
presence of MT8280.
FLASH_WE
The FLASH_WE signal is the write enable signal for the system
flash IC. This signal is hardware-wise write enabled by default
but is put to disabled after it is written with a valid software
image file.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Function Reference
INT_CEC GPIO46
Reserved GPIO49
Reserved GPIO48
INTERRUPT GPIO47
ANA-DIG_DIM_SELECT GPIO50
LCD_PWR_ON GPIO51
+12VDISP_DETECT GPIO52
HEADPHONE_DETECT GPIO53
FLASH_WE GPIO54
USB_PWE GPIO6
USB_OC GPIO7
PRST GPIO8
CHDEC_RESET GPIO9
PWN GPIO10
INT0 GPIO11
8280_DETECT GPIO12
ANA-DIG_AUD_SELECT GPIO13
EDID_WE GPIO39
UART_SELECT GPIO67
HDMI_HPD_2 GPIO23
DDC_RESET GPIO24
BACKLIGHT_ON_OFF GPIO21
CTRL_DISP1_uP GPIO25
CTRL_DISP4_uP GPIO26
HDMI_HPD_3 GPIO27
RESET_PI GPIO28
HDMI_RESET GPIO29
SYS_EEPROM_WE GPIO30
HDMI_HPD_1 GPIO22
Reserved GPIO40
PWM_DIMMING GPIO41
BACKLIGHT_BOOST GPIO42
CEC GPIO200
POWER_DOWN GPIO201
SDM GPIO202
MUTEn GPIO203
ANTI_PLOP GPIO204
DC_PROT GPIO205
HDMI_HPD_Side GPIO43
IR Pin 9
CEC Pin 10
KEYBOARD Pin 19
SDA Pin 20
SCL Pin 21
LED1 Pin 24
LED2 Pin 25
INT_CEC Pin 26
POWER_DOWN Pin 35
STANDBYn Pin 41
Type Remarks
Input Interrupt Port from Stby Controller
N/A Trap(0)
N/A Trap(1)
Input Interrupt Port for BDS Bolt-On
Output Analog or Digital Dimming Selection
Output Vdisp On/Off Control Signal
Input Display Power Detection
Input Headphone Detection Indicator
Output Serial Flash Write Enable
Output USB Power Enable
Input USB Over Current
Output MT8280 Power On Reset
Output Reset Signal for MT5112
Output MT8280 Power Down Mode
Input Interrupt from MT8280
Input MT8280 Detection
Output Gain Selection to Pre-Amp (Reserved)
Output WE for EDID EEPROMs
Output Service UART Selector (Reserved)
Output HDMI Hotplug Detect for HDMI2
Output DDC Line Reset Signal
Output LCD Backlight On/Off Control
Output Display Control (Reserved)
Output Display Control (Reserved)
Output HDMI Hotplug Detect for HDMI3
Output Reset Signal for ProIdiom
Output Reset Signal for Sil9185
Output WE for System EEPROM
Output HDMI Hotplug Detect for HDMI1
N/A Trap(0)
Output PWM for Backlight Dimming / Trap(0)
Output LCD Backlight Boosting / Trap(0)
N/A HDMI CEC Line
Input Power-down Indicator
Input SDM Mode Detection (Startup Only)
Output Audio Output Muting
Output Audio Anti-Plop Control / Trap(1)
Input Audio Output DC Protection / Trap(1)
Output HDMI Hotplug Detect for HDMI Side
Input From IR Receiver
N/A HDMI CEC Line
Input Key Control (Ladder Circuit) Input
N/A Data Line to SDA Bus
N/A Clock Line to SCL Bus
Output Main LED (White) Control
Output Standby LED (Red) Control
Output Interrupt Output to MT5382
Input +12V Detection
Output Power Control Line (Inverted)
IR
The IR signal is an output from the remote control IR receiver.
This signal is connected in parallel to both MT5382 and
Standby Controller.
KEYBOARD
The KEYBOARD signal is a DC signal from the control board
ladder circuit indicating which key has been pressed.
LED1
The LED1 control signal comes from the Standby Controller
and its function is to control the ON mode LED. The ON mode
LED is "White" in color and represents the status of the system,
where it is "on" only in normal operation. A low signal turns on
the LED, while a high signal turns off the LED.