Datasheet

56F8033/56F8023 Data Sheet, Rev. 6
30 Freescale Semiconductor
Return to Table 2-2
TDI
(GPIOD0)
30 Input
Input/
Output
Input,
internal
pull-up
enabled
Test Data Input — This input pin provides a serial input data stream
to the JTAG/EOnCE port. It is sampled on the rising edge of TCK
and has an on-chip pull-up resistor.
Port D GPIO — This GPIO pin can be individually programmed as
an input or output pin.
After reset, the default state is TDI.
TDO
(GPIOD1)
32 Output
Input/
Output
Output,
tri-stated,
internal
pull-up
enabled
Test Data Output — This tri-stateable output pin provides a serial
output data stream from the JTAG/EOnCE port. It is driven in the
shift-IR and shift-DR controller states, and changes on the falling
edge of TCK.
Port D GPIO — This GPIO pin can be individually programmed as
an input or output pin.
After reset, the default state is TDO.
TCK
(GPIOD2)
14 Input
Input/
Output
Input,
internal
pull-up
enabled
Test Clock Input — This input pin provides a gated clock to
synchronize the test logic and shift serial data to the JTAG/EOnCE
port. The pin is connected internally to a pull-up resistor. A Schmitt
trigger input is used for noise immunity.
Port D GPIO — This GPIO pin can be individually programmed as
an input or output pin.
After reset, the default state is TCK.
TMS
(GPIOD3)
31 Input
Input/
Output
Input,
internal
pull-up
enabled
Test Mode Select Input — This input pin is used to sequence the
JTAG TAP controller’s state machine. It is sampled on the rising
edge of TCK and has an on-chip pull-up resistor.
Port D GPIO — This GPIO pin can be individually programmed as
an input or output pin.
After reset, the default state is TMS.
Note: Always tie the TMS pin to V
DD
through a 2.2K resistor.
Return to Table 2-2
Table 2-3 56F8033/56F8023 Signal and Package Information for the 32-Pin LQFP
Signal
Name
LQFP
Pin No.
Type
State During
Reset
Signal Description