Computer Computer Hardware User Manual

2-15
Hardware Setup
SPI Flash ROM Connector: JSPI1
This connector is used to flash SPI flash ROM.
Pin Description Pin Description
1 VCC3_SB 2 VCC3_SB
3 SPI_MISO_F 4 SPI_MOSI_F
5 SPI_CS0_F# 6 SPI_CLK_F
7 GND 8 GND
9 SPI_HOLD# 10 NC
Pin Definition
1
JSPI1
2
9
10
RS-232 Serial Port Connector: COM2 ~ COM5
This connector is a 16550A high speed communications port that sends/receives 16
bytes FIFOs. You can attach a serial device to it through the optional serial port
bracket.
PIN SIGNAL DESCRIPTION
1 DCD Data Carry Detect
2 SIN Serial In or Receive Data
3 SOUT Serial Out or Transmit Data
4 DTR Data Terminal Ready
5 GND Ground
6 DSR Data Set Ready
7 RTS Request To Send
8 CTS Clear To Send
9 VCC_COM3 Power Source
Pin Definition
COM2/3/4/5
1
9
2
10
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