SCF5249VM140 FREESCALE [Freescale Semiconductor, Inc], SCF5249VM140 Datasheet - Page 23

• Manufacturer Part Number: SCF5249VM140
• Description: Integrated ColdFire Microprocessor
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

8.14 Analog to Digital Converter (ADC)
The single output on the TOUT1/ADOUT/GPO35 pin provides the reference voltage in PDM format
therefore this output requires an external integrator circuit (resistor/capacitor) to convert it to a DC level to
be used by the external comparator circuit. Four external comparators compare the DC level obtained after
filtering TOUT1/ADOUT/GPO35 with the relevant input signals. The outputs of the comparators are fed
to the 4 ADIN inputs on the SCF5249: EBUIN3/ADIN0/GPI38, EBUIN4/ADIN1/GPI39,
RXD2/ADIN2/GPI38 and CTS2/ADIN3/GPI31. 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.
8.15 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.
Freescale Semiconductor
Table 12
SDATA0_SDIO1/GPIO54
Flash Memory Signal
CMD_SDIO2/GPIO34
SDATA1_BS1/GPIO9
RSTO/SDATA2_BS2
The SDATA0_SDIO1 and RSTO/SDATA2_BS2 signals are only used in the
160 MAPBGA package.
SCLKOUT/GPIO15
SDATA3/GPIO57
gives the pin descriptions.
SCF5249 Integrated ColdFire® Microprocessor Data Sheet, Rev. 3
Table 12. Flash Memory Card Signals
Clock out for both MemoryStick interfaces and for SecureDigital
Secure Digital command line
MemoryStick interface 2 data i/o
SecureDigital serial data bit 0
MemoryStick interface 1 data i/o
SecureDigital serial data bit 1
MemoryStick interface 1 strobe
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.
SecureDigital serial data bit 3
NOTE
Description
Signal Descriptions
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