Datasheet

Table Of Contents
TLK100
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SLLS931BAUGUST 2009REVISED DECEMBER 2009
2.5 JTAG Interface
PIN
TYPE DESCRIPTION
NAME NO.
JTAG_TCK 44 I, PU This pin is the test clock.This pin has a weak internal pullup.
JTAG_TDI 45 I, PU This pin is the test data input.This pin has a weak internal pullup.
JTAG_TDO 47 O This pin is the test data output.
JTAG_TMS 46 I, PU This pin selects the test mode. This pin has a weak internal pullup.
JTAG_TRST This pin is an active low asynchronous test reset. This pin has a weak internal pullup.
48 I, PU
N
2.6 Reset and Power Down
PIN
TYPE DESCRIPTION
NAME NO.
This pin is an active Low reset input that initializes or re-initializes all the internal registers of the
RESETN 43 I, PU TLK100. Asserting this pin low for at least 1 μs will force a reset process to occur. All jumper
options are reinitialized as well.
Register access is required for this pin to be configured either as power down or as an interrupt.
The default function of this pin is power down.
When this pin is configured for a power down function, an active low signal on this pin will put the
PWRDNN/INT 42 I, OD, PU device is power down mode.
When this pin is configured as an interrupt pin then this pin is asserted low when an interrupt
condition occurs. The pin has an open-drain output with a weak internal pull-up. Some
applications may require an external pull-up resistor.
Copyright © 2009, Texas Instruments Incorporated Pin Descriptions 7
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