
Secure Digital/ MemoryStick card Interface
2-10
MCF5249UM
MOTOROLA
Selection of function for pin TOUT1/ADOUT/GPO35 is done by writing GPIO function select register
(determines if function is GPIO or not), and differentiation between timer and adout functions is done in the
ADCONFIG Register.
2.15
SECURE DIGITAL/ MEMORYSTICK CARD INTERFACE
The device has a versatile flash card interface that supports both SecureDigital and MemoryStick cards.
The interface can either support one SecureDigital or two MemoryStick cards. No mixing of card types is
possible.
Table 2-9 gives the pin descriptions.
Note: The SDATA0_SDIO1 and RSTO/SDATA2_BS2 signals are only used in the 160
MAPBGA package.
2.16
QUEUED SERIAL PERIPHERAL INTERFACE (QSPI)
Note: The CMD_SDIO2 signal is only used in the 160 MAPBGA package.
The QSPI interface is a high-speed serial interface allowing transmit and receive of serial data. Pin
Table 2-9 Flash Memory Card Signals
FLASH MEMORY SIGNAL
DESCRIPTION
SCLKOUT/GPIO15
Clock out for both MemoryStick interfaces and for
SecureDigital
CMD_SDIO2/GPIO34
Secure Digital command line
MemoryStick interface 2 data i/o
SDATA0_SDIO1/GPIO54
SecureDigital serial data bit 0
MemoryStick interface 1 data i/o
SDATA1_BS1/GPIO9
SecureDigital serial data bit 1
MemoryStick interface 1 strobe
RSTO/SDATA2_BS2
SecureDigital serial data bit 2
MemoryStick interface 2 strobe
Reset output signal
Selection between Reset function and SDATA2_BS2 is done
by programming PLLCR register.
SDATA3/GPIO57
SecureDigital serial data bit 3
Table 2-10 Queued Serial Peripheral Interface (QSPI) Signals
SERIAL MODULE SIGNAL
DESCRIPTION
SCL_QSPICLK
Multiplexed signal IIC interface clock or QSPI clock output
Function select is done via PLLCR register.
SDA_QSPIDIN
Multiplexed signal IIC interface data or QSPI data input.
Function select is done via PLLCR register.
QSPIDOUT_GPIO26
QSPI data output
QSPICS0_GPIO29
4 different QSPI chip selects
QSPICS1_GPIO24
QSPICS2_GPIO21
QSPICS3_GPIO22
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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