RSK+RZA1H
5. User Circuitry
R20UT3007EG0200 Rev. 2.00
Page 22 of 53
May 17, 2015
5.11
Universal Serial Bus (USB)
This RSK+ board is fitted with two channels of USB. Each channel can operate as either a host or as a
function device. Channel 0 is by default configured as USB Function and the connector and jumper link
settings for the channel 0 power supply are shown in Table 5.10. Channel 1 is by default configured as USB
Host and the connector and jumper link settings for the Channel 1 power supply are shown in Table 5.12. The
signal connections to the MCU for Channel 0 and Channel 1 are detailed in Table 5.9 and Table 5.11
respectively.
USB Signal
Function
MCU
Port
Pin
DP0
Positive differential data signal.
DP0
AA12
DM0
Negative differential data signal.
DM0
AB12
VBUS0
Cable monitor pin.
VBUSIN0
Y12
USB_PWR_ENA
VBUS power supply enable.
Port Expander 2 IO[5] – See Table 5.4
USB_OVR_CURRENT
Over-current detection signal
Port Expander 2 IO[4] – See Table 5.4
Table 5.9: USB0 Module MCU Connections
Operation as USB
Function
Fit Connector CN6
Do Not Fit Connector CN8
Power from Connector CN6
Link JP11 pins 2 and 3
Operation as USB Host
Fit Connector CN8
Do Not Fit Connector CN6
Power from RSK
Link JP11 pins 1 and 2
Table 5.10: USB0 Module Connector and Power Settings
USB Signal
Function
MCU
Port
Pin
DP1
Positive differential data signal.
DP1
AB11
DM1
Negative differential data signal.
DM1
AA11
VBUS1
Cable monitor pin.
VBUSIN1
Y11
USB_PWR_ENB
VBUS power supply enable.
Port Expander 2 IO[6] – See Table 5.4
USB_OVR_CURRENT
Over-current detection signal
Port Expander 2 IO[4] – See Table 5.4
Table 5.11: USB1 Module MCU Connections
Operation as USB Host
Fit Connector CN8
Do Not Fit Connector CN6
Power from RSK
Link JP11 pins 1 and 2
Operation as USB
Function
Fit Connector CN6
Do Not Fit Connector CN8
Power from Connector CN6
Link JP11 pins 2 and 3
Table 5.12: USB1 Module Connector and Power Settings
Note:
•
When evaluating OTG, ensure to replace the default USB connector (USB0_D) with a USB Micro-AB connector.
•
Connectors such as the one manufactured by Hirose Electric with part number ZX62R-AB-5P, can be used.
Note: Default settings are shown in
bold, blue
text
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