dsp56857 Freescale Semiconductor, Inc, dsp56857 Datasheet - Page 9

• Manufacturer Part Number: dsp56857
• Description: Dsp56857 Digital Signal Controller
• Manufacturer: Freescale Semiconductor, Inc

Part 3 Signals and Package Information
All digital inputs have a weak internal pull-up circuit associated with them. These pull-up circuits are
enabled by default. Exceptions:
This table is presented consistently with the Signals Identified by Functional Group figure.
Freescale Semiconductor
Pin No.
1. When a pin has GPIO functionality, the pull-up may be disabled under software control.
2. MODE A, MODE B, and MODE C pins have no pull-up.
3. TCK has a weak pull-down circuit always active.
4. Bidirectional I/O pullups automatically disable when the output is enabled.
1. BOLD entries in the Type column represents the state of the pin just out of reset.
2. Output(Z) means an output in a High-Z condition.
25
36
50
59
60
76
87
37
38
61
88
8
9
Table 3-1 56857 Signal and Package Information for the 100-pin LQFP
Signal Name
V
V
V
V
V
V
V
V
V
V
V
V
V
DD
DD
DD
DD
DD
DD
DD
DD
SS
SS
SS
SS
SS
Type
V
V
DD
SS
56857 Technical Data, Rev. 6
Power (V
chip, and should all be attached to V
Ground (V
of the chip and should all be attached to V
DD
SS
)—These pins provide power to the internal structures of the
)—These pins provide grounding for the internal structures
Description
DD.
SS.
Introduction
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