P4S-341 User Manual > Peripherals(JP1)
2019-03-14
Sollae Systems
page 9 of 17
※ Note: Each UIO port is 5V tolerant in input mode and the maximum driving current is ±8mA in
output mode.
Pin Assignment of Digital I/O
Serial: UART
P4S-341 provides 2 UART ports.
Specification of UART is as follows:
Division
Value
Number of Port
2
Interfaced Pin Label
UART0: Required(U0TX/4, U0RX/5, GND), Optional(U0RTS/8, U0CTS/9)
UART1: Required(U1TX/10, U1RX/11, GND), Optional(U1RTS/12,
U1CTS/13)
Signal Level
3.3V
Baud Rate
1,200 ~ 230,400 [bps]
Parity
NONE / EVEN / ODD / MARK / SPACE
Data bit
8 / 7(Parity is required to use 7 data bit mode)
Stop bit
1 / 2
Flow Control
NONE, RTS/CTS
TxDE Pin
UART0 - UIO0.8(UART0 RTS), UART1 - UIO0.12(UART1 RTS)
Serial: SPI
P4S-341 provides a SPI interface.
Specification of SPI is as follows:
Parameter
Value
Number of Port
1
Signal Level
3.3V
Interfaced Pin Label
NSS/0, SCLK/1, MOSI/2, MISO/3
SPI mode
mode 0 ~ 3
Bit Order
LSB > MSB or MSB > LSB
Transmission Unit
8bit or 16bit
Basic Clock Speed
42㎒
Frequency
2 / 4 / 8 / 16 / 32 / 64 / 128 / 256
