Chapter 6 Connectors For Ports Of Device; Push Button For Reset; Mode Selection; Connectors To Mainboard - Renesas RH850/E2 Series User Manual

Chapter 6 Connectors for ports of device

6.1
6.2
6.3
6.3.1
R20UT4084ED0130 Rev. 1.3
2020-05-12
Connection to most functional pins of the devices is possible via the connectors
CN5 to CN8 and CN18.
Some functions might not be available on the pin headers, e.g. high frequency
signals, as this would disturb the integrity of such signals. The actual voltage
levels of the various voltage domains can be measured at the individual jumpers.
For more details, please refer to sec. 3.2 'Voltage distribution' and Chapter 11
'Schematic'.
CAUTION: The pin headers are directly connected to the pins of the device,
therefore special care must be taken to avoid any electrostatic or other damage
to the device.

Push button for RESET

In order to issue a RESET to the device, the push-button SW1 is available.

Mode Selection

The PiggyBack Board gives the possibility to configure the following mode pins

MD0 via jumper JP26

MD1 via jumper JP27
To apply a "High" signal to the mode pins, the corresponding jumpers can be set.
CAUTION: Be careful in configuration of mode related pins, as wrong
configuration can cause irregular behaviour of the devices. Be sure to check the
corresponding User Manual, for details, which modes can be selected for the
used device.

Connectors to MainBoard

Three connectors (CN1, CN2 and CN3) are available to connect the PiggyBack
board to a MainBoard. Regarding the function on the MainBoard, please refer to
the UM of any supported MainBoard (Y-RH850-X1X-MB-Tx-Vx).
For details about the signal assignment to the connectors, please refer to
Chapter 11 'Schematic'.

Assignment of CAN Pins

The available Mainboards (Y-RH850-X1X-MB-Tx-Vx) provide connectors for CAN
communication. The channel number of the Mainboards does not match the
channel number of RH850/E2x devices.
The following table shows the assignment.
Table 5 CAN Function Assignment
Mainboard
Port Pin
CAN0TX P32_1
CAN0RX P32_0
CAN1TX P15_2
CAN1RX P15_1
PiggyBack Board (MCU)
CAN Alternative Function
CTX2
CRX2
CTX1
CRX1
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