C8051F36x-DK

Rev. 0.3

9

5.5. USB to Serial Connector (P1)

A USB-to-Serial bridge interface is provided. A USB B-type connector (P1), a Silicon Laboratories CP2102 USB-to-

UART Bridge, and related circuits are provided to facilitate the serial connection between a PC and the C8051F360

microcontroller on the target board. The RX, TX, CTS and RTS signals of the UART side of the Bridge (CP2102)

may be connected to the microcontroller by installing shorting blocks on J12 as follows:

5.6. Analog I/O (P2)

Several of the C8051F360 target device’s port pins are connected to the P3 terminal block. Refer to Table 5 for the

P3 terminal block connections.

5.7. Power Connector (J1)

The Target Board can be powered from three different sources: 1) The regulator input from the P2 9 V DC Power

Adapter, 2) The 5 V VBUS signal if P4 is connected to a USB bus, and 3) The 5 V USB bus if a USB Debug

Adapter is connected to the Debug Header (J9). Place a shorting block at header J1[REG_IN-P1_PWR] to power

the board directly from an AC/DC Power Adapter. Place a shorting block at header J1[REG_IN-VBUS] to power the

board from the USB bus connected to P4. Place a shorting block at header J1[REG_IN-SER_PWR] to power the

board from the USB Debug Adapter. Please note that the second option is not supported if a USB bus is not

connected to P4 and the third option is not supported with either the EC1 or EC2 Serial Adapters.

Note: Only one power option should be selected at one time.

Table 4. UART Connections (J12)

Connection

Signals

J12[9–10]

P0.1 to TX_MC

J12[11–12]

P0.2 to RX_MC

J12[13–14]

P3.4 to RTS

J12[15–16]

P3.5 to CTS

Table 5. J6 Terminal Block Pin Descriptions

Pin #

Description

1

P2.3/AIN2.3/CP0+

2

P2.4/AIN2.4/CP0–

3

GND (Ground)

4

P0.3/VREF (Voltage Reference)

5P0.4/IDAC