User's Manual

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2. 6. 5 UART Interface PADs
As Interface for "Data terminal equipment"(DTE) and UART data communications, and supports
UART1 and UART2, you can send and receive data by RS-232 data communication requirements.
Table 2. 8 UART Interface PADs
PAD
No.
PAD name
Input / Output
Remark
Voltage
Type
5
DSR
1.8V
Out
UART1 Data Set Ready
6
RI
1.8V
Out
UART1 Ring Indicator
44
TXD
1.8V
In
UART1 Data Input
45
CTS
1.8V
Out
UART1 Clear To Send
46
RXD
1.8V
Out
UART1 Data Output
47
RTS
1.8V
In
UART1 Ready To Send
68
DTR
1.8V
In
UART1 Data Terminal Ready
69
DCD
1.8V
Out
UART1 Data Carrier Detect
81
UART2_TXD
1.8V
In
UART2 Data Input
83
UART2_RXD
1.8V
Out
UART2 Data Output
2. 6. 6 USB Interface PADs
As Interface for "Data terminal equipment"(DTE) and USB data communication, in addition to
data communication it can also be used as a Source Download Software and debugging purposes.
Table 2. 9 USB Interface PADs
PAD
No.
PAD name
Input / Output
Remark
Voltage
Type
55
USB_VBUS
5.0V
In
USB Powet input
22
USB (-)
-
Both
USB (-) signal
23
USB (+)
-
Both
USB (+) signal
24
HSIC_STB
-
HSIC Strobe
25
HSIC_DATA
-
HSIC Data