32 323094 Dev Kit Manual
IO headers are provided for the other 8 USB lanes.
Over current protection has been provided for ports in pairs. Ports (0,1), (1,2)…(12,13) share
the OC Indicators.
Table 11. USB Port Mapping
J3A3 (4 stacked USB Connector)
J3A3 (4 stacked USB Connector)
J3A3 (4 stacked USB Connector)
J3A3 (4 stacked USB Connector)
J4A1 (Rework Required: Stuff R8F3 and
R8F5; No Stuff R8F2 and R8F4)
3.7.2.7 LPC Super I/O (SIO)/ LPC Slot
A SMSC SIO1007 serves as the SIO on the motherboard and is located at U9A1. Shunting the
jumper at J8C3 to the 2-3 positions can disable the SIO by holding it in reset. This allows
other SIO solutions to be tested in the LPC slot at J8F2. A sideband header is provided at
J9G2 for this purpose. This sideband header also has signals for LPC power management.
3.7.2.8 Serial IrDA
The SMSC SIO incorporates a serial port, and IrDA (Infrared), as well as general purpose IOs
(GPIO). The Serial Port connector is provided at J1A2, and the IrDA transceiver is located at
U6A2. The IrDA transceiver on the motherboard supports SIR (slow IR), FIR (Fast IR) and
CIR (Consumer IR). The option to select between these is supported through software and
GPIO pin (IR_MODE) on the SIO.
3.7.2.9 System Management Controller (SMC)/ Keyboard
Controller (KBC)
A Renesas* H8S/2117 (U9H1) serves as both SMC and KBC for the platform. The SMC/KBC
controller supports two PS/2 ports, battery monitoring and charging, wake/runtime SCI
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