Datasheet

Secure Digital Card
FRDM-K64F Freedom Module User’s Guide, User's Guide, Rev. 1, 08/2016
NXP Semiconductors 11
When the FRDM-K64F board is operating in USB host mode, J21 must be shunt to supply 5 V power
from VBUS (J22). The source of 5 V power can be OpenSDAv2 USB port (J26), pin 10 of J3 I/O
header, and P5-9V_VIN DC-DC converter of J27.
Figure 10. K64 USB power input for host mode
7. Secure Digital Card
A micro Secure Digital (SD) card slot is available on the FRDM-K64F connected to the SD Host
Controller (SDHC) signals of the MCU. This slot will accept micro format SD memory cards. The SD
card detect pin is an open switch that shorts with V
DD
when card is inserted. Table 4 describes the SDHC
signal connection details of micro SD card.
Figure 11. Micro SD interface
Table 4. Micro SD card socket connection
Pin
Function
TWR-K64120M connection
1
DAT2
PTE5/SPI1_PCS2/UART3_RX/SDHC0_D2/FTM3_CH0
2
CD/DAT3
PTE4/LLWU_P2/SPI1_PCS0/UART3_TX/SDHC0_D3/TRACE_D0
3
CMD
PTE3/ADC0_DM2/ADC1_SE7A/SPI1_SIN/UART1_RTS/SDHC0_CMD/TRACE_D1/SPI1_S
OUT