C8051T620/2-DK

Table 2 lists the port pins and headers corresponding to the switches, LEDs, and potentiometer.

Table 2. Motherboard I/O Descriptions

Description

Component Name

I/O

Header

 

 

 

 

Switch

SW1

Daughter Card's P0.1

J9 [2-4]

 

 

Daughter Card’s P2.0

J9 [4-6]

 

 

 

 

Switch

SW2

Daughter Card’s P1.0

J9 [1-3]

 

 

Daughter Card’s P2.1

J9 [3-5]

 

 

 

 

RESET

SW3

Daughter Card's RST/C2CK

None

 

 

 

 

Green LED labeled “LED1”

D1

Daughter Card's P0.6

J10 [2-4]

 

 

Daughter Card's P2.2

J10 [4-6]

 

 

 

 

Green LED labeled “LED2”

D2

Daughter Card’s P1.2

J10 [1-3]

 

 

Daughter Card's P2.3

J10 [3-5]

 

 

 

 

Red LED labeled “PWR”

D4

Daughter Card's VDD

J6, J7

 

 

 

 

Red LED labeled “VPP”

D7

Daughter Card's VPP pin

J15

 

 

(See "VPP Pin Sharing" on

 

 

 

page 16)

 

 

 

 

 

Green LED labeled “RUN”

D10

Debug Adapter Signal

None

 

 

 

 

Red LED labeled “STOP”

D11

Debug Adapter Signal

None

 

 

 

 

Orange LED labeled “DEBUG PWR”

D12

Debug Adapter Signal

None

 

 

 

 

Green LED labeled “USB ACTIVE”

D13

U2 CP2103's SUSPEND

None

 

 

 

 

Potentiometer

R8

Daughter Card's P2.5

J12

 

 

 

 

7.3. Power Supply Headers (J6 and J7)

The main power supply of the motherboard, which is used to power the daughter board, can be provided by either the USB Debug Adapter’s on-chip voltage regulator, the CP2103 USB-to-UART bridge’s on-chip voltage regulator, P3 and its associated circuitry, or an external voltage applied to the VDD_EXT connection on J1. To select a power supply, place a shorting block on J6 across the appropriate pin pair, as shown in Figure 12. To connect the main power supply to an attached daughter board, place a shorting block across J7.

Notes:

1.Only one shorting block should be placed on J6 at a time.

2.To use the CP2103’s voltage regulator as the board's power supply, a USB cable must be connected to P4, and the USB ACTIVE LED (D2) must be on.

3.To use the USB Debug Adapter’s voltage regulator as the board's power supply, a USB cable must be connected to P5, and the DEBUG PWR LED (D12) must be on.

J7

VDD_T620

VDD_PWR

 

J6

+3VD

 

VDD_EXT

VDD_PWR

VDD_DEBUG

 

VDD_COMM

 

+3.3V Regulator Power

(From P3)

J7

VDD_T620

VDD_PWR

 

J6

+3VD

 

VDD_EXT

VDD_PWR

VDD_DEBUG

 

VDD_COMM

 

CP2103 Regulator Power

(From USB at P4)

J7

VDD_T620

VDD_PWR

 

J6

+3VD

 

VDD_EXT

VDD_PWR

VDD_DEBUG

 

VDD_COMM

 

Debug Circuit Power

(From USB at P5)

J7

VDD_T620

VDD_PWR

 

J6

+3VD

VDD_EXT VDD_PWR VDD_DEBUG

VDD_COMM

External Power Source (From J1 Connector)

Figure 12. J6 and J7 Shorting Block Configuration for Power Options

14

Rev. 0.4

Page 14
Image 14
Silicon Laboratories C8051T620/2-DK quick start Power Supply Headers J6 and J7, Motherboard I/O Descriptions

C8051T620/2-DK specifications

Silicon Laboratories C8051T620/2-DK is an advanced single-chip microcontroller designed for high-performance embedded applications. Built around the robust C8051 architecture, this microcontroller integrates a powerful 8051 core with advanced peripherals, providing developers with a versatile platform for a range of application needs.

One of the standout features of the C8051T620/2-DK is its high-speed performance. The microcontroller can operate at clock speeds up to 100 MHz, significantly faster than standard 8051 microcontrollers. This capability enables the execution of complex algorithms and real-time processing tasks with ease. Moreover, the architecture boasts a 16-bit timer/counter that enhances the ability to manage timing-critical applications effectively.

The C8051T620/2-DK comes equipped with up to 64 KB of on-chip Flash memory, facilitating the storage of essential program code and data. This generous memory allocation allows developers to implement larger, more sophisticated programs without relying on external memory, thereby simplifying design and improving reliability. Additionally, the on-chip RAM can be up to 4 KB, providing ample space for executing variables and stack operations.

In terms of connectivity, the C8051T620/2-DK supports a slew of communication protocols, including UART, SPI, and I2C. This versatile communication capability enables seamless integration into various systems, allowing for easy data exchange with other devices, sensors, and peripherals.

Furthermore, the microcontroller includes an extensive range of integrated analog peripherals, such as a 12-bit ADC, which enhances the device’s ability to interface with analog signals in automotive, industrial, and consumer applications. The presence of PWM outputs also allows for precise control of motors and other actuators, making it an excellent choice for complex control systems.

Silicon Laboratories has designed the C8051T620/2-DK with energy efficiency in mind. The microcontroller supports multiple power-saving modes, enabling developers to optimize their designs for low power consumption. This feature is particularly valuable in battery-operated devices, where maintaining power is crucial for extending operational life.

Overall, the Silicon Laboratories C8051T620/2-DK provides a powerful, flexible, and energy-efficient solution for embedded systems. Its high-speed performance, large memory, extensive connectivity options, and robust analog capabilities make it an ideal choice for engineers and developers looking to create innovative embedded applications in diverse industries.