HT-CT780
56
Pin No.
Pin Name
I/O
Description
114
TDO
O
Test data output terminal (for JTAG) Not used
115
FAN_CONT
O
Fan motor control signal output terminal Not used
116
EEPROM data in/out
I/O
Two-way data bus with the EEPROM
117
EEPROM clock
O
Serial data transfer clock signal output to the EEPROM
118
FAN_ON
O
Fan motor on/off control signal output terminal Not used
119, 120
P_CONT1, P_CONT2
O
Power on/off control signal output terminal “H”: power on
121
PW_VACS_DET
I
Thermal detection signal input terminal (Except US, Canadian and Taiwan models only)
122, 123
NO USE
O
Not used
124
TEST_SDA
I/O
Two-way data bus terminal Not used
125
TEST_SCL
O
Serial data transfer clock signal output terminal Not used
126
VCC
-
Power supply terminal (+3.3V)
127
VSS
-
Ground terminal
128
ASEL0
O
Analog audio selection signal output terminal “L”: external analog input, “H”: Bluetooth
129
SEL_HDMI
O
HDMI selection signal output terminal “H”: HDMI
130
PCONT_USB
O
USB VBUS power on/off control signal output terminal “H”: power on
131
MC_BT_RTS
O
Return to send signal output to the Bluetooth module
132
MC_BT_CTS
I
Clear to send signal input from the Bluetooth module
133
BT_MUTE
I
Muting on/off control signal input from the Bluetooth module “L”: muting on
134
MC_BT_TXD0
O
Serial data output to the Bluetooth module
135
MC_BT_RXD0
I
Serial data input from the Bluetooth module
136
BT_RST
O
Reset signal output to the Bluetooth module “L”: reset
137
PCONT_BT
O
Power on/off control signal output terminal for the Bluetooth section “H”: power on
138
NO USE
(USB_EXT_PULLUP)
O
Not used
139
FLASH WRITE SEL
I
Flash memory writing mode selection signal input terminal “L”: serial, “H”: USB
Fixed at “L” in this unit
140
CEC_TX_RX
I/O
Two-way CEC serial data with the HDMI connector
141
VCC
-
Power supply terminal (+3.3V)
142
USB DM
I
USB data (–) input from the UPDATE connector
143
USB DP
I
USB data (+) input from the UPDATE connector
144
VSS
-
Ground terminal
Ver. 1.1
