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Signal/Connection Descriptions
MC56F825x/MC56F824x Digital Signal Controller, Rev. 3
Freescale Semiconductor
23
GPIOC2
(TXD0)
(TB0)
(XB_IN2)
(CLKO)
555
Input/
Output
Input/
Output
Input
Output
Input,
internal
pullup
enabled
Port C GPIO — This GPIO pin can be individually programmed as
an input or output pin.
TXD0 — The SCI0 transmit data output or transmit/receive in single
wire operation.
TB0 — Quad timer module B channel 0 input/output.
XB_IN2 — Crossbar module input 2
CLKO — This is a buffered clock output; the clock source is selected
by clockout select (CLKOSEL) bits in the clock output select register
(CLKOUT) of the SIM.
After reset, the default state is GPIOC2.
GPIOC3
(TA0)
(CMPA_O)
(RXD0)
667
Input/
Output
Input/
Output
Input
Input,
internal
pullup
enabled
Port C GPIO — This GPIO pin can be individually programmed as
an input or output pin.
TA0 — Quad timer module A channel 0 input/output.
CMPA_O— Analog comparator A output
RXD0 — The SCI0 receive data input.
After reset, the default state is GPIOC3.
GPIOC4
(TA1)
(CMPB_O)
778
Input/
Output
Input/
Output
Input,
internal
pullup
enabled
Port C GPIO — This GPIO pin can be individually programmed as
an input or output pin.
TA1 — Quad timer module A channel 1input/output
CMPB_O — Analog comparator B output
After reset, the default state is GPIOC4.
GPIOC5
(DACO)
(XB_IN7)
12
13
18
Input/
Output
Analog
Output
Input
Input,
internal
pullup
enabled
Port C GPIO — This GPIO pin can be individually programmed as
an input or output pin.
DACO — 12-bit Digital-to-Analog Controller output
XB_IN7 — Crossbar module input 7
After reset, the default state is GPIOC5.
Table 5. MC56F825x/MC56F824x Signal and Package Information (continued)
Signal
Name
44
LQFP
48
LQFP
64
LQFP
Type
State
During
Reset
Signal Description