TMS320VC5507 datasheet(21/108 Pages) TI1

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SM320VC5507-EP

www.ti.com

SPRS613 – SEPTEMBER 2009

Table 2-2. Signal Descriptions (continued)

TERMINAL

MULTIPLEXED

RESET

I/O/Z (1)

FUNCTION

BK (2)

NAME

SIGNAL NAME

CONDITION

TEST/EMULATION PINS

IEEE standard 1149.1 test clock. TCK is normally

a free-running clock signal with a 50% duty cycle.

The changes on test access port (TAP) of input

signals TMS and TDI are clocked into the TAP

TCK

Input

controller, instruction register, or selected test data

TAP output signal (TDO) occur on the falling edge

of TCK.

IEEE standard 1149.1 test data input. Pin with

internal pullup device. TDI is clocked into the

TDI

Input

selected register (instruction or data) on a rising

edge of TCK.

IEEE standard 1149.1 test data output. The

contents of the selected register (instruction or

TDO

O/Z

data) are shifted out of TDO on the falling edge of

Hi-Z

TCK. TDO is in the high-impedance state except

when the scanning of data is in progress.

IEEE standard 1149.1 test mode select. Pin with

internal pullup device. This serial control input is

TMS

Input

clocked into the TAP controller on the rising edge

of TCK.

IEEE standard 1149.1 test reset. TRST, when

high, gives the IEEE standard 1149.1 scan system

control of the operations of the device. If TRST is

TRST

not connected or driven low, the device operates

Input

in its functional mode, and the IEEE standard

1149.1 signals are ignored. This pin has an

internal pulldown.

Emulator 0 pin. When TRST is driven low, EMU0

must be high for activation of the OFF condition.

When TRST is driven high, EMU0 is used as an

EMU0

I/O/Z

Input

interrupt to or from the emulator system and is

defined as I/O by way of the IEEE standard

1149.1 scan system.

Emulator 1 pin/disable all outputs. When TRST is

driven high, EMU1/OFF is used as an interrupt to

or from the emulator system and is defined as I/O

by way of IEEE standard 1149.1 scan system.

When TRST is driven low, EMU1/OFF is

configured as OFF. The EMU1/OFF signal, when

EMU1/OFF

I/O/Z

Input

active-low, puts all output drivers into the

high-impedance state. Note that OFF is used

exclusively for testing and emulation purposes

(not for multiprocessing applications). Therefore,

for the OFF condition, the following apply: TRST =

low, EMU0 = high, EMU1/OFF = low.

SUPPLY PINS