MMC2107 - Freescale Semiconductor

Signal Description
Freescale Semiconductor, Inc.
4.5.6.2 Transmit Data (TXD1 and TXD2)
These signals are used for the SCI transmitter data output and are also
available for GPIO when not configured for transmitter operation.
4.5.7 Timer Signals (ICOC1[3:0] and ICOC2[3:0])
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Freescale Semiconductor, I
4.5.8 Analog-to-Digital Converter Signals
These signals provide the external interface to the timer functions. They
may be configured as general-purpose I/O if the timer output function is
not needed. The default state at reset is general-purpose input.
These signals are used by the analog-to-digital converter (QADC)
module.
4.5.8.1 Analog Inputs (PQA[4:3], PQA[1:0], and PQB[3:0])
4.5.8.2 Analog Reference (V RH and V RL )
4.5.8.3 Analog Supply (V DDA and V SSA )
These signals provide the analog inputs to the QADC. The PQA signals
may also be used as general-purpose digital I/O. The PQB signals may
also be used as general-purpose digital inputs.
These signals serve as the high (V RH ) and low (V RL ) reference potentials
for the analog converter.
These dedicated power supply signals isolate the sensitive analog
circuitry from the normal levels of noise present on the digital power
supply.
4.5.8.4 Positive Supply (V DDH )
This signal supplies positive power to the ESD structures in the QADC
pads.
Technical Data MMC2107 – Rev. 2.0
126 Signal Description MOTOROLA
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