DM3725 datasheet(23/268 Pages) TI

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DM3730, DM3725

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SPRS685 – AUGUST 2010

2.3

Ball Characteristics

Table 2-1 through Table 2-3 describe the terminal characteristics and the signals multiplexed on each pin

for the CBP, CBC, and CUS packages, respectively. The following list describes the table column

headers.

1. BALL BOTTOM: Ball number(s) on the bottom side associated with each signal(s) on the bottom.

2. BALL TOP: Ball number(s) on the top side associated with each signal(s) on the top.

3. PIN NAME: Names of signals multiplexed on each ball (also notice that the name of the pin is the

signal name in mode 0).

Note: Table 2-1 through Table 2-3 do not take into account subsystem pin multiplexing options.

Subsystem pin multiplexing options are described in Section 2.5, Signal Descriptions.

4. MODE: Multiplexing mode number.

(a) Mode 0 is the primary mode; this means that when mode 0 is set, the function mapped on the pin

corresponds to the name of the pin. There is always a function mapped on the primary mode.

Notice that primary mode is not necessarily the default mode.

Note: The default mode is the mode at the release of the reset; also see the RESET REL. MODE

column.

(b) Modes 1 to 7 are possible modes for alternate functions. On each pin, some modes are effectively

used for alternate functions, while some modes are not used and do not correspond to a functional

configuration.

5. TYPE: Signal direction

–

I = Input

–

O = Output

–

I/O = Input/Output

–

D = Open drain

–

DS = Differential

–

A = Analog

–

PWR = Power

–

GND = Ground

Note: In the safe_mode, the buffer is configured in high-impedance.

6. BALL RESET STATE: The state of the terminal at the power-on reset.

–

0: The buffer drives VOL (pulldown/pullup resistor not activated)

0(PD): The buffer drives VOL with an active pulldown resistor.

–

1: The buffer drives VOH (pulldown/pullup resistor not activated)

1(PU): The buffer drives VOH with an active pullup resistor.

–

Z: High-impedance

–

L: High-impedance with an active pulldown resistor

–

H : High-impedance with an active pullup resistor

7. BALL RESET REL. STATE: The state of the terminal at the release of the System Control Module

reset (PRCM CORE_RSTPWRON_RET reset signal).

–

0: The buffer drives VOL (pulldown/pullup resistor not activated)

0(PD): The buffer drives VOL with an active pulldown resistor.

–

1: The buffer drives VOH (pulldown/pullup resistor not activated)

1(PU): The buffer drives VOH with an active pullup resistor.

–

Z: High-impedance

–

L: High-impedance with an active pulldown resistor

–

H : High-impedance with an active pullup resistor

8. RESET REL. MODE: The mode is automatically configured at the release of the System Control

Module reset (PRCM CORE_RSTPWRON_RET reset signal).

9. POWER: The voltage supply that powers the terminal’s I/O buffers.

10. HYS: Indicates if the input buffer is with hysteresis.

TERMINAL DESCRIPTION

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