Intel Edison Breakout Board Kit EDI1BB.AL.K Data Sheet
Product codes
EDI1BB.AL.K
High-Level Functional Description
Pin
Description
J20 - pin 8
GP84
SD_CLK_FB
GPIO, SD clock feedback input.
J20 - pin 9
GP42
SSP2_RXD
GPIO, SSP2 Rx data input.
J20 - pin 10
GP41
SSP2_FS
GPIO, SSP2 frame sync output.
J20 - pin 11
GP78
SD_CLK
GPIO, SD clock output.
J20 - pin 12
GP79
SD_CMD
GPIO, SD command.
J20 - pin 13
GP80
SD_DAT0
GPIO, SD data 0.
J20 - pin 14
GP81
SD_DAT1
GP81 SD data 1.
J19 - pin 1
NC
No connect.
J19 - pin 2
V_V1P80
System 1.8 V I/O output power.
J19 - pin 3
GND
Ground.
J19 - pin 4
GP44
ALS_INT_N
GPIO, ALS interrupt input.
J19 - pin 5
GP46
ACCELEROMETER_INT_1
GPIO, accelerometer interrupt input.
J19 - pin 6
GP48
GYRO_DRDY
GPIO, gyro data ready input.
J19 - pin 7
RESET_OUT#
System reset out low.
J19 - pin 8
GP131
UART1_TX
GPIO, UART 1 Tx output.
J19 - pin 9
GP14
AUDIO_CODEC_INT
GPIO, audio codec interrupt input.
J19 - pin 10
GP40
SSP2_CLK
GPIO, SSP2 clock output.
J19 - pin 11
GP43
SSP2_TXD
GPIO, SSP2 transmit data output.
J19 - pin 12
GP77
SD_CDN
GPIO, SD card detect low input.
J19 - pin 13
GP82
SD_DAT2
GPIO, SD data 2
J19 - pin 14
GP83
SD_DAT3
GPIO, SD data 3
2.2
Intel® Edison breakout board expansion USB interface
The Edison module has a single USB 2.0 interface. This interface is the primary method for downloading code.
Edison is design to support OTG, using the ID signal. J16 is a microAB USB .
Edison is design to support OTG, using the ID signal. J16 is a microAB USB .
2.3
Intel® Edison breakout board expansion power supply
Intel® Edison is a low-power device. In general, it does not draw more than 200 mA with 600 mA short duration
spikes during Wi-Fi transmit. Therefore, an Intel® Edison device may run on USB power (when configured as a
device), or an external power adapter from 7 to 15 V.
spikes during Wi-Fi transmit. Therefore, an Intel® Edison device may run on USB power (when configured as a
device), or an external power adapter from 7 to 15 V.
Power from the external power adapter goes to a DC-DC converter and down-converted to 5 V. The 5 V rail is
diode ORed with the USB VBUS rail. This power goes to a battery recharger IC, which limits the output voltage to
4.4 V. This voltage is in the safe range for the Edison module VSYS. The VSYS power range is 3.15 to 4.5 V. This
allows VSYS to run off a standard lithium-ion battery. The charger IC is configured to limit the input power to 1. The
charger is programmed to charge at 190 mA. This charger is designed to charge standard lithium-ion batteries with
4.2 V maximum charging voltage. You are responsible for choosing a suitable battery and following all safety
precautions, to prevent overcharging or charging when the battery temperature is too high.
diode ORed with the USB VBUS rail. This power goes to a battery recharger IC, which limits the output voltage to
4.4 V. This voltage is in the safe range for the Edison module VSYS. The VSYS power range is 3.15 to 4.5 V. This
allows VSYS to run off a standard lithium-ion battery. The charger IC is configured to limit the input power to 1. The
charger is programmed to charge at 190 mA. This charger is designed to charge standard lithium-ion batteries with
4.2 V maximum charging voltage. You are responsible for choosing a suitable battery and following all safety
precautions, to prevent overcharging or charging when the battery temperature is too high.
The drawback to this design is that the linear supply power drop places a limit on the total power through the Intel®
Edison board and the 3.3 and 1.8 V supplies. The power loss through the charger will be (4.4 to 5 V) • current. In this
Edison board and the 3.3 and 1.8 V supplies. The power loss through the charger will be (4.4 to 5 V) • current. In this
Intel® Edison Breakout Board
Hardware Guide
September 2014
8
Document Number: 331190-003