MSC8144EC Datasheet, PDF(25/80 Page) Freescale Semiconductor, Inc

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MSC8144EC Datasheet, PDF (25/80 Pages) Freescale Semiconductor, Inc – Quad Core Digital Signal Processor

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Electrical Characteristics

Table 1. Signal List by Ball Number (continued)

Ball

Number

Signal Name

Power-

Reset

Value

0 (000)

1 (001)

I/O Multiplexing Mode2

2 (010) 3 (011) 4 (100) 5 (101)

6 (110)

7 (111)

Ref.

Supply

AH17 Reserved1

AH18 Reserved1

AH19 Reserved1

AH20 Reserved1

AH21 Reserved1

AH22 Reserved1

AH23 Reserved1

AH24 Reserved1

AH25 Reserved1

AH26 Reserved1

AH27 Reserved1

AH28 Reserved1

Notes: 1. Reserved signals should be disconnected for compatibility with future revisions of the device.

2. For signals with same functionality in all modes the appropriate cells are empty.

3. The choice between GPIO function and other function is by GPIO registers setup. For configuration details, see Chapter 23,

GPIO in the MSC8144EC Reference Manual.

4. Open-drain signal.

5. Internal 20 KÎ© pull-up resistor.

6. For signals with GPIO functionality, the open-drain and internal 20 KÎ© pull-up resistor can be configured by GPIO register

programming. See Chapter 23, GPIO of the MSC8144EC Reference Manual for configuration details.

2 Electrical Characteristics

This document contains detailed information on power considerations, DC/AC electrical characteristics, and AC timing

specifications. For additional information, see the MSC8144EC Reference Manual.

2.1 Maximum Ratings

CAUTION

This device contains circuitry protecting against damage

due to high static voltage or electrical fields; however,

normal precautions should be taken to avoid exceeding

maximum voltage ratings. Reliability is enhanced if unused

inputs are tied to an appropriate logic voltage level (for

example, either GND or VDD).

In calculating timing requirements, adding a maximum value of one specification to a minimum value of another specification

does not yield a reasonable sum. A maximum specification is calculated using a worst case variation of process parameter values

in one direction. The minimum specification is calculated using the worst case for the same parameters in the opposite direction.

Therefore, a âmaximumâ value for a specification never occurs in the same device with a âminimumâ value for another

specification; adding a maximum to a minimum represents a condition that can never exist.

MSC8144EC Quad Core Digital Signal Processor Data Sheet, Rev. 6

Freescale Semiconductor

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