Doc. No: Unex-HDG-20-001
10/11
A printed version of this document is an uncontrolled copy
© 2020 Unex Technology Corporation – Company Confidential
Pin
Symbol
Type
Pull
Drive
Strength
(mA)
Description
Power
Domain
56
UART4_RXD
I
PU
4
UART Interface, Receive input for RF0 cable
compensator
VDD_3.3V
57
S_GPIO15
I/O
PU
4
General Purpose I/O
VDD_3.3V
58
GND
G
-
-
Ground
-
59
M3_CLK32KOUT
O
-
-
Output 32 kHz clock.
RTC Clock source for
external CPU
VDD_3V3_A
60
GND
G
-
Ground
-
61
VBAT_3V3_AO_PG_OC
I
PU
-
Low voltage indicator (LVI). Used by PMU to
change system state from normal to standby
(Falling = Stand By; Rising = Wake Up)
VDD_3V3_A
62
CAN0_INH
O
PU
4
CAN0 Inhibit pin. Active HIGH.
(High = CAN standby; Low = CAN normal)
VDD_3.3V
63
M3_ONOFF
I
PU
-
On/Off bottom input. Falling edge toggles
Normal => Standby or Standby => Normal
operation.
VDD_3V3_A
64
VDD_3V3_A
P
-
-
3.3V Power Supply Always On (VDD_3V3_A)
-
65
GND
G
-
-
Ground
-
66
UART2_TXD
O
PU
4
UART Interface, Transmit output
VDD_3.3V
67
UART2_RXD
I
PU
4
UART Interface, Receive input
VDD_3.3V
68
UART3_TXD
O
PU
4
UART Interface, Transmit output
(console, 115200bps, 8N1)
VDD_3.3V
69
UART3_RXD
I
PU
4
UART Interface, Receive input
(console, 115200bps, 8N1)
VDD_3.3V
70
N.C.
-
-
-
Non Connection
-
71
N.C.
-
-
-
Non Connection
-
72
N.C.
-
-
-
Non Connection
-
73
N.C.
-
-
-
Non Connection
-
74
GND
G
-
-
Ground
-
75
SAR_ADC_CH0
I
-
-
Analog to Digital Converter, resolution 10bits,
ENOB 9bits, sampling rate 2.5MHz
VDD_3.3V
76
SAR_ADC_CH1
I
-
-
Analog to Digital Converter, resolution 10bits,
ENOB 9bits, sampling rate 2.5MHz
VDD_3.3V
77
SAR_ADC_CH2
I
-
-
Analog to Digital Converter, resolution 10bits,
ENOB 9bits, sampling rate 2.5MHz
VDD_3.3V
78
SAR_ADC_CH3
I
-
-
Analog to Digital Converter, resolution 10bits,
ENOB 9bits, sampling rate 2.5MHz
VDD_3.3V
79
GND
G
-
-
Ground
-
80
USB0_DP
I/O
-
-
USB differential line D+
VDD_3.3V
81
USB0_DN
I/O
-
-
USB differential line D-
VDD_3.3V
82
GND
G
-
-
Ground
-
83
GND
G
-
-
Ground
-
84
USB1_DP
I/O
-
-
USB differential line D+
VDD_3.3V
85
USB1_DN
I/O
-
-
USB differential line D-
VDD_3.3V
86
GND
G
-
-
Ground
-
87
I2C_SCL
I/O
PU
4
I2C Interface, clock line
VDD_3.3V
88
I2C_SDA
I/O
PU
4
I2C Interface, data line
VDD_3.3V
89
RF2_COMP_TX_EN
O
PU
8
Tx/Rx control for the RF1 cable compensator
VDD_3.3V
90
WD_OUT_IND
O
PU
4
Asserted upon SoC WD reset; Can be used to
reset devices on board (like SQI flash) upon
SoC WD reset.
VDD_3.3V
91
S_GPIO4
I/O
PU
4
General Purpose I/O
VDD_3.3V
92
GND
G
-
-
Ground
-