Serial Port; Usb - Epson SCE8720C Series Hardware Manual

CARD-PCI/GX Hardware Manual

4.6 Serial port

SCE8720C supports 2 ports of serial interfaces by 16550-compatible UART.
When sending/receiving data at a high speed, use sufficient RS232C driver.

4.7 USB

By connecting the USB signal of SCE8720C directly to the USB connector, 2-channel
USB port becomes available.
When the overcurrent detector of the USB detects an overcurrent, USB port can be
disabled in order to protect the circuit. In this case, even if only one port is detected as
an overcurrent, both USBs are disabled. Connection example is shown below.
+5V
SCE8720C
USBON
USBCUR#
USBDP1
USBDM1
USBDP0
USBDM0
44
Overcurrent
detector
Figure 4.5 USB interface connection
EPSON
USB ch1
USB ch0
Rev.A