Intel Edison Breakout Board BB.AL.B Data Sheet
Product codes
BB.AL.B
High-Level Functional Description
2
High-Level Functional Description
Figure 1 provides the block diagram for the Intel® Edison breakout board.
Figure 1
Intel® Edison breakout board block diagram
UART 1
USB 0TG
Client
USB
Micro
Type-AB
7V to 15V Brick
Power Supply
SPI
UART 0
I2C
0.
1"
header
GPIO
PWM
4
Client
USB
Micro
Type-B
UART – USB
FTDI
Intel® Edison
SD
4.4V power supply
and battery
recharger
2.1
Intel® Edison breakout board expansion header
This section explains the expansion header.
When the pin mode is chosen as GPIO, it can be programmed as an output or input. When programmed as an input,
a GPIO can serve as an interrupt or wake source. Inputs have programmable pullups or pulldowns. Pullup value can
be 2, 20, or 50 kohm. I2C pins also have an additional 910 ohm value.
a GPIO can serve as an interrupt or wake source. Inputs have programmable pullups or pulldowns. Pullup value can
be 2, 20, or 50 kohm. I2C pins also have an additional 910 ohm value.
When in general purpose mode, input GPIO signals enter a glitch filter by default, before reaching the edge
detection registers. To ensure that a pulse is detected by the edge detection register, the pulse should be five clock
cycles long.
detection registers. To ensure that a pulse is detected by the edge detection register, the pulse should be five clock
cycles long.
•
100 ns for a 50 MHz clock when SoC is in S0 state.
•
260 ns for 19.2 MHz clock when SoC is in S0i1 or S0i2 State.
•
155.5 µs for 32 kHz clock (RTC) when SoC is in S0i3 State.
Most GPIO capable pins are configured as GPIO inputs during the assertion of all resets and they remain inputs
until configured otherwise.
until configured otherwise.
As outputs, the GPIOs can be individually cleared or set. They can be pre-programmed to either state when
entering standby. Output drive is ±3 mA.
Intel® Edison Breakout Board
entering standby. Output drive is ±3 mA.
Intel® Edison Breakout Board
Hardware Guide
September 2014
6
Document Number: 331190-003